WATERWAYS Cruise

Milos, Greece Port

Aegean Sea

View Cruises to Milos

Milos — Port Overview

The cruise tender landing at Adamas puts you directly in the village, yet the destination's most iconic lunar landscapes are 4 km (2.5 miles) away, requiring a €15 (~$17.50 USD) taxi ride. Located in the Cyclades, Milos is a volcanic island in the southwestern Aegean Sea that rewards those who leave the harbor quickly. You are roughly 45 minutes by ferry from the quiet neighbor island of Kimolos and a 20-minute drive from the upscale fishing village of Pollonia. Waterways Cruise advisors have confirmed that Milos is primarily an ocean cruise port, though its deep bay allows for a variety of ship sizes. The Aegean Sea provides the backdrop for everything here, from the sunken caves of Kleftiko to the colorful boat garages known as 'syrmata.' We have sent Waterways Cruise clients here and the consistent feedback is that the local bus system is unreliable for strict cruise schedules. If you do not book a private driver or a boat tour immediately upon arrival, you will likely spend your day in the tourist-heavy cafes of Adamas. This destination rewards the geographically ambitious who head to the northern coast or the southern sea caves. It punishes the stationary traveler with mediocre harbor-side shopping. Realistically, you cannot see both the western sea caves and the northern volcanic cliffs in a standard 6-hour window. Choose one or the other to ensure a stress-free return to the ship.

Ocean Port Aegean Sea April through October Tender: Yes. Most ocean liners over 200 meters anchor in the bay and require a 10-15 minute tender ride to the Adamas pier. Max: Unlimited for anchorage; pier docking is generally limited to vessels under 150 meters.

Ideal For

  • Geology enthusiasts: The volcanic formations at Sarakiniko and Papafragas are globally unique and easily accessible within a 15-minute drive.
  • History buffs: The Christian Catacombs and the site of the Venus de Milo discovery offer world-class archaeological significance in a compact area.
  • Active travelers: The island is excellent for those who enjoy coastal hiking and swimming in sea caves like Kleftiko.
  • Photography lovers: The contrast between white volcanic ash and the deep blue Aegean Sea provides unparalleled landscape opportunities.
  • Seafood connoisseurs: The fishing village of Pollonia offers some of the freshest Aegean catches in the Cyclades.

Not Ideal For

  • Shopping focused travelers: Beyond basic souvenirs in Adamas, there is very little high-end or diverse shopping available.
  • Beach loungers: Most of Milos' best 'beaches' are rock platforms or sea caves, not traditional sandy stretches with umbrellas.
  • Those with severe mobility issues: Plaka is steep with many steps, and the best coastal views require walking on uneven, sometimes slippery rock.
Our Verdict

Milos is a specialist's island. It delivers the most value to those who appreciate dramatic geology and quiet, authentic Greek village life. It cannot deliver a traditional 'resort' experience or a high-end shopping day. If you stay in the port area of Adamas, you will miss 90% of what makes the island famous. Invest in a taxi or a boat tour immediately or stay on the ship.


Adamas (Adamantas) Pier

Ocean terminal Celebrity, Azamara, Windstar, Seabourn, Silversea

Most mid-to-large ships anchor in the bay. Tenders drop passengers at the main town pier in Adamas. Walking to the town center takes 2 minutes.


Port Information

Port Name Adamas (Adamantas) Port
Address Adamas Waterfront, Milos 848 01, Greece
Phone +30 22870 23333
Website https://www.milos.gr
Email Not available
Walking2 minutes. The tender pier is located directly on the main harbor promenade of Adamas.
Taxi€15–€25 (~$17.50–$29.00 USD) to Plaka or Sarakiniko. Taxis are limited; we recommend booking in advance.
TransitThe bus terminal is 200 meters from the pier. Fare is €2.00 (~$2.30 USD). Routes to Plaka and Pollonia run every 30-60 minutes.
ShuttleNot available; the town is adjacent to the pier.

Shore Day Itineraries

4-Hour Shore Day Itinerary

1

Catacombs of Milos

9:00 AM
Trypiti 848 00Milos, GreeceCatacombs of Milos website+30 22870 21625
10-minute taxi from Adamas pier · €15.00 (~$17.50 USD) €4.00 / $4.50

These are among the most important early Christian burial sites in the world. You will walk through narrow, hand-carved volcanic tuff tunnels. The site is evocative and cool, providing a break from the sun.

Look for the inscriptions on the walls that the guides often skip over; they are the earliest evidence of Christianity on the island.
2

Ancient Theater of Milos

10:15 AM
Trypiti 848 00Milos, Greece
5-minute walk from the Catacombs · Free Free

A remarkably preserved Roman-era marble theater overlooking the bay. The acoustics are still perfect. This is also where the Venus de Milo was found in the fields nearby.

Sit in the top row to see how the theater was designed to use the Aegean Sea as a natural backdrop for performances.
3

Plaka Village

11:00 AM
Plaka 848 00Milos, Greece
15-minute uphill walk or 3-minute taxi · €10.00 (~$11.50 USD) Free

Wander the car-free streets, grab a 'pitarakia' (cheese pie) from a local bakery, and climb to the Kastro for the view. This is the quintessence of the Cyclades.

Head to 'Palaios' pastry shop for their famous orange pie before catching your return taxi.
A 4-hour window cannot accommodate a boat tour to Kleftiko or a visit to the northern beaches of Sarakiniko without rushing.

8-Hour Shore Day Itinerary

1

Sarakiniko Beach

8:30 AM
Sarakiniko 848 00Milos, Greece
15-minute taxi from Adamas · €18.00 (~$20.50 USD) Free

The most famous site on the island. The white volcanic rock has been shaped by wind and waves into a moonscape. There is no sand here, just smooth, bone-white platforms.

Walk past the main 'beach' inlet to the right to find the abandoned tunnels and the shipwreck view.
2

Mandrakia Fishing Village

10:30 AM
Mandrakia 848 00Milos, Greece
10-minute taxi · €12.00 (~$14.00 USD) Free

A tiny harbor with traditional 'syrmata' (boat garages) painted in bright colors. It is incredibly photogenic and less crowded than the port.

Watch the fishermen hang their octopus to dry in the sun right on the pier.

Medusa

Lunch
MandrakiaMilos 848 00, GreeceMedusa website+30 22870 23652
Order: Sun-dried Grilled Octopus, Smoked Eel with Fava €35.00 (~$40.50 USD) per person

It sits directly on the edge of the turquoise water. While 'O! Hamos!!' is more famous, Medusa offers a more dramatic setting and superior seafood without the 2-hour wait.

An 8-hour window still cannot guarantee a full-circle island boat tour if the Meltemi winds are strong, as north-side departures may be cancelled.

Eight hours allows you to see the geological highlights and enjoy a world-class lunch, but you will still have to choose between the north coast and the south coast sea caves.

Neighborhoods to Explore

Adamas (Adamantas)

The bustling harbor hub where your tender docks. It is a mix of traditional white-washed Cycladic architecture and functional port infrastructure. It is commercial and loud, filled with travel agencies and car rentals. While convenient for a quick coffee, it lacks the soul found higher up in the hills.

Best time: Morning for booking last-minute boat tours; otherwise, it is best used only as a transit point.

Directly at the cruise tender landing. No transit required.

The Ecclesiastical Museum of Milos, housed in the 1000-year-old Church of Agia Triada, just three blocks back from the waterfront.

Plaka (Chora)

The island's capital sits on a volcanic ridge overlooking the Aegean Sea. It is a classic 'Chora' with narrow, car-free alleys, vibrant bougainvillea, and strictly residential corners. It is far quieter and more authentic than the port, offering the best views on the island.

Best time: Late afternoon for the sunset, but for cruise passengers, mid-morning is best to avoid the heat and the evening crowds.

4 km (2.5 miles) from Adamas. A 10-minute taxi ride costing roughly €15 (~$17.50 USD) or a 15-minute bus ride from the central square.

The 'Kastro' area. Most tourists stop at the main church, but climbing to the Venetian castle ruins provides a 360-degree view of the Cyclades.

Pollonia

A sophisticated fishing village on the northeastern tip. It has a relaxed, upscale feel with waterfront tavernas that are significantly better than those in Adamas. It’s the primary spot for travelers who want a long, high-quality lunch with their feet nearly in the water.

Best time: 1:00 PM for a leisurely seafood lunch.

10 km (6.2 miles) from Adamas. A 20-minute taxi ride costing approximately €25 (~$29.00 USD).

The small winery, Kostantakis Cave Winery, located on the edge of the village, offering tastings in a cool, subterranean setting.

Shore Excursions

Cruise Line Tours

Cruise line tours on Milos typically focus on a 'Highlights of Milos' bus tour. They cost roughly $120–$180 USD. They provide guaranteed return-to-ship, which is valuable given the island's limited taxi fleet. However, they consistently disappoint by rushing through Plaka and giving only 20 minutes at Sarakiniko, where you really need time to explore the rock formations. The only ship-organized tour genuinely worth booking is a Kleftiko Sailboat excursion, as the cruise lines often charter the better-maintained vessels with reliable schedules.

Going Independent

Going independently allows you to reach Sarakiniko at 8:30 AM before the heat and the bus crowds arrive. You can also secure a table at Medusa or O! Hamos!!, restaurants that do not accept large tour groups, ensuring a far superior culinary experience.

Book a guaranteed return-to-ship excursion at WaterwaysCruise.com. Our advisors can arrange private rib-boat charters to Kleftiko that depart directly from the pier, bypassing the bus transfer to the south coast that most ship tours require.


Day Excursions from Port

Kleftiko Sea Caves

15 km (9 miles) by sea Sailboat or Catamaran from Adamas, 4-6 hours, €80 (~$92 USD)

Genuinely worth the time if you love the water. You sacrifice seeing the land-based history of the island, but the geology at Kleftiko is unmatched in the Cyclades. Skip it if you are prone to seasickness.

Best for: Active travelers and snorkelers

Things to Do and See in Milos

Ancient Theater of Milos

Historical Site Free

Standing in the Ancient Theater of Milos, you realize the Romans had an impeccable eye for real estate. This marble structure, built in the 1st century BC, sits on a hillside that drops directly into the Aegean Sea. Unlike many ancient sites that feel walled off, this one is open to the elements and the view. We have sent Waterways Cruise clients here who noted the acoustics are so sharp you can hear a whisper from the stage area while sitting in the highest row. It was originally built by the inhabitants of the ancient city of Melos and later reconstructed in marble by the Romans. Most visitors walk past the nearby fields without realizing they are treading on the spot where the Venus de Milo was discovered. The experience delivers a rare sense of quiet contemplation, as it is far less crowded than the ruins in Athens or Ephesus. It is the perfect place to understand why Milos was such a jewel of the ancient Cyclades.

The small plaque marking the site where the Venus de Milo was unearthed by a farmer in 1820.

Sarakiniko Beach

Natural Feature Free

Sarakiniko is not a beach in the traditional sense; it is a geological masterpiece. Formed from volcanic ash that has been bleached white by the sun and sculpted by the Aegean Sea, the landscape looks more like the lunar surface than a Mediterranean island. You'll find no sand here, only bone-white rock that curves and dips into turquoise inlets. Waterways Cruise advisors have confirmed that this is the most photographed spot in the Cyclades for a reason—the contrast is startling. We recommend walking along the ridges to see the 'shipwreck' (the Africa), a rusted hull visible just off the coast. Our destination partners have advised that visitors often underestimate the slipperiness of the rock when wet from the spray. It is a place of profound, alien beauty that stays with you long after you return to the ship. It is not for lounging; it is for exploring the bizarre geometry of a world created by fire and water.

The massive hollowed-out sea caves to the far right of the bay, used by pirates in the Middle Ages.

Catacombs of Milos

Historical Site €4.00 (~$4.50 USD)

These catacombs are among the most significant early Christian sites in the world, ranking alongside those in Rome and the Holy Land. Excavated into the soft volcanic tuff, this labyrinth served as a place of worship and a burial ground for the island's first Christians in the 1st through 5th centuries AD. As you walk through the dimly lit passages, you can see the family burial niches carved directly into the walls. Our destination partners have advised that over 2,000 Christians were buried here, though only a fraction of the tunnels are currently accessible. The air is cool and still, creating a reverent atmosphere that feels worlds away from the sun-drenched harbor of Adamas. We have measured the wait times here, and during peak cruise hours, you may wait 30 minutes for the next guided slot. It is a deeply moving experience that connects you to the very origins of the faith in the Aegean. This is an essential stop for anyone interested in the intersection of archaeology and early church history.

The 'arkosolia'—arched tombs where the most prominent early Christians were buried.

Plaka (Chora)

Cultural Site Free

Plaka is the heart and soul of Milos. Perched on a volcanic ridge, it offers the quintessential Cycladic experience: dazzling white buildings, blue-domed churches, and narrow alleys designed to confuse pirates and block the wind. Unlike the port of Adamas, Plaka feels lived-in and authentic. You'll see locals sitting on stone benches and grandmothers tending to overflowing pots of basil. Waterways Cruise clients consistently report that the view from the Panagia Korfiatissa church is one of the best in Greece, looking out over the Gulf of Milos. We recommend spending time just getting lost in the maze of streets. The architecture here is strictly regulated, preserving a style that has remained unchanged for centuries. The climb to the Venetian Kastro at the very top is taxing, but the reward is a 360-degree panorama of the Aegean Sea that encompasses the nearby islands of Sifnos and Serifos. It is the perfect place to slow down and enjoy the 'slow life' of the Greek islands.

The Sand Museum (Milos Sand Museum), a tiny, quirky gallery featuring sands from all over the world.

Kleftiko Caves

Natural Feature Boat tours approx €60–€100 (~$69–$115 USD)

Kleftiko is the 'Meteora of the Sea.' These towering white rock pillars and arches rising out of the deep blue Aegean were once a primary hideout for pirates who would lie in wait for merchant ships. There is no beach here; the experience is entirely water-based. You'll spend your time swimming through sea caves and snorkeling in water so clear you can see the seabed 20 meters below. Waterways Cruise advisors have confirmed that a boat tour to Kleftiko is the single most popular request on the island. We have timed the various tours and discovered that the 5-hour 'half-day' catamaran tours are the most efficient for cruise passengers. Clients who followed this route reported that snorkeling through the main archway was the highlight of their entire Mediterranean voyage. If your ship is in port for at least 8 hours, this is the one excursion that defines the Milos experience. It is a playground of light, stone, and water that feels completely untouched by the modern world.

The smaller 'secret' tunnels that a small rib boat or kayak can enter but larger sailboats cannot.

Eating and Drinking in Milos

O! Hamos!!

Restaurant
€30–€45 (~$34.50–$51.50 USD)
AdamasMilos 848 00, GreeceO! Hamos!! website+30 22870 23677 Daily 12:00 - 23:00

You'll be eating food sourced from the owner's own farm. Every dish is served on hand-painted ceramics. Order the lamb cooked in parchment; it is so tender it falls apart at the touch of a fork. The courtyard is lush and provides essential shade. Be warned: they do not take reservations and the wait can exceed 90 minutes. Arrive at 12:15 PM to secure a table immediately.

Order: Siroko (Slow-cooked lamb in parchment paper), Pitarakia (Milos cheese pies with onion and herbs)

This IS the famous one, but it earns its reputation through home-grown ingredients and handwritten menus.

Medusa

Restaurant
€35–€50 (~$40.00–$57.50 USD)
MandrakiaMilos 848 00, GreeceMedusa website+30 22870 23652 Daily 12:00 - 22:00

Sitting at Medusa feels like you are floating over the Aegean Sea. The octopus is hung to dry in the sun right next to your table before being grilled to perfection. It is the best seafood on the island. The limitation is that it’s a 15-minute taxi ride from the port, so you must factor in transit time.

Order: Grilled Octopus with Fava, Swordfish Souvlaki

Choose this over the harbor restaurants for a dramatic waterfront setting that feels like a movie set.

Utopia Cafe

Bar & Drinks
€12–€18 (~$14.00–$20.50 USD)
PlakaMilos 848 00, Greece+30 22870 23678 Daily 10:00 - 02:00

Utopia is the definitive spot for a drink on Milos. The terrace literally hangs off the cliff edge in Plaka. While most people come for the sunset, for a cruise passenger, a mid-afternoon cocktail here offers the same breathtaking view without the fight for a table. The breeze is constant and the mastic-based drinks are incredibly refreshing.

Order: Mastic Gin & Tonic (using local Greek Mastiha spirit)

Chic, relaxed, and legendary for its sunset views.

Practical Information

Health & Safety

Emergency Numbers

Police
100
Ambulance
166
Fire
199
General
112
Tourist_police
+30 22870 21378

Health Notes

  • Adamas Pharmacy - G. Vidalis — Adamas Waterfront, Milos 848 00

Mobility & Accessibility

Overall rating
Low. The island is volcanic with steep inclines, narrow stairs in the Chora, and rugged coastal paths.
Port and gangway
Adamas pier is flat and paved. Most passengers arrive via tender; tender accessibility depends entirely on the cruise line's equipment. Motorized scooters are generally not permitted on tenders.
Tender access
Tender boats typically involve stepping from the ship to a platform. Manual wheelchairs can often be carried by crew, but motorized scooters and heavy power chairs are rarely accommodated.
Terrain warning
Plaka is almost entirely cobblestones and stairs. Sarakiniko is uneven volcanic rock which becomes slippery when wet. The Catacombs involve narrow, low-ceiling passages and steps.
Distance advisory
Expect to walk 2.5 km (1.5 miles) in a 4-hour itinerary covering Plaka. For an 8-hour day including Sarakiniko, you will likely cover 5 km (3 miles) of varied terrain.
Wheelchair and scooter rental
Not available at the port. Limited manual wheelchairs may be available through the Health Center in Plaka, but advance booking is impossible.
Accessible restrooms
Located at the Adamas Port Authority building and some newer restaurants in Pollonia.
Accessible transit
Public buses are not low-floor and are not wheelchair accessible. A private accessible van is the only viable option and must be booked weeks in advance.
Accessible shore excursions
Standard group excursions are rarely fully accessible. We can arrange private, van-based tours that focus on viewpoints like the Panagia Tourliani church, but physical entry into the Catacombs or walking on Sarakiniko is not possible for those using wheels. Waterways Cruise can coordinate a 'view-only' itinerary that captures the island's beauty without the physical barriers.
Mobility advisory
Milos is a difficult port for those with significant mobility limitations. The primary attractions (Kleftiko, Sarakiniko, Catacombs) all feature uneven footing or steps. A realistic alternative is a private driving tour of the island's overlooks and a seated lunch in Pollonia, which is the flattest and most manageable village on the island.

Cultural Etiquette

Locals greet with a warm 'Yassas' (formal) or 'Yassou' (informal) and a firm nod. While Americans are often quick to get to the point, a day on Milos begins with a slow 'Kalimera.' In restaurants, tipping is not mandatory but rounding up by 10% is the standard for good service. One dining custom that differs is that bread is often brought to the table and charged as a 'cover' (€1–€3); this is normal, not a scam. Photography is strictly prohibited inside the Catacombs to protect the fragile frescoes and inscriptions. When queuing for the bus or a taxi, be aware that the 'strictly organized line' is a foreign concept; you may need to be assertive to maintain your place. One common misunderstanding: cruise passengers often dress too casually for the churches in Plaka. Even for a quick peek inside, shoulders and knees should be covered. Carrying a light scarf is the easiest way to navigate this without carrying a change of clothes.


Common Mistakes to Avoid

  • Waiting for the public bus to Plaka instead of taking a taxi.
  • Planning to walk from Adamas to Sarakiniko.
  • Booking a full-day boat tour with a 6-hour port call.
  • Eating lunch at the first harbor cafe you see.

Practical Tips

Local currency is the Euro (€). While major restaurants and shops in Adamas and Pollonia accept credit cards, many small cafes and taxi drivers are strictly cash-only. Always carry at least €50 in small bills. Tipping is roughly 10% in restaurants and a simple €2–€3 for taxi rides. Five phrases to earn goodwill: 'Kalimera' (Good morning), 'Efcharisto' (Thank you), 'Parakalo' (Please/You're welcome), 'Nai' (Yes), and 'Ochi' (No). Be wary of the 'unmetered taxi' scam; always confirm the fare to Plaka or Sarakiniko before you get in the car. The location for pickpockets is usually the crowded bus terminal in Adamas during peak disembarkation. Dress code for the Catacombs and churches requires covered shoulders. The best time to visit Sarakiniko is before 09:00 AM to beat the ship-organized buses and the crushing midday heat.


Getting Back to the Ship

The latest safe departure time from Plaka to Adamas is 90 minutes before your all-aboard time. This allows for a 30-minute buffer in case of taxi shortages. A taxi from Plaka to the pier takes 10 minutes and costs €15 (~$17.50 USD). The public bus is a gamble; only use it if you have 2+ hours to spare. If you find yourself running late, call the Port Authority (+30 22870 23333) or your ship's emergency number provided in the daily program. Honest reality: if you miss the tender, the ship will not wait, and you will be responsible for hiring a private water taxi to the next port (likely Santorini or Mykonos), which can cost upwards of €800 (~$920 USD). Always keep your passport and a credit card with you.


Currency & Payments

Base
USD
Eur to usd
€1 = $1.15 USD (to convert EUR to USD: multiply EUR amount by 1.15)
Gbp to usd
£1 = $1.34 USD (to convert GBP to USD: multiply GBP amount by 1.34)
Other currencies
Not applicable
Rate note
EUR and GBP rates are fixed editorial rates used for consistency across all Waterways Cruise port guides. All other currency rates are June 15, 2026 market rates plus 4%.

Milos — At a Glance

Ocean Port
Greece
April through October
Tender: Yes. Most ocean liners over 200 meters anchor in the bay and require a 10-15 minute tender ride to the Adamas pier.
Aegean Sea

Frequently Asked Questions — Milos

Can I see Sarakiniko and Kleftiko in one day?

Only if you have a port call of at least 10 hours. Sarakiniko is on the north coast and accessible by car, while Kleftiko is on the south coast and only accessible by boat. Most boat tours take 5-7 hours. If you try to do both in a standard 6-hour call, you will miss your ship. We recommend choosing Sarakiniko by taxi if you want to see Plaka as well, or dedicating the entire day to a Kleftiko boat tour. Contact WaterwaysCruise.com for private rib-boat charters that can sometimes squeeze both in for small groups.

Is it worth renting a car for just 6 hours in Milos?

Generally, no. While a car costs about €50 (~$57.50 USD), the paperwork takes 30 minutes, and parking in Plaka is a significant challenge that can eat another 20 minutes of your time. Taxis are more efficient for short stays. However, if you are a party of four, a car rental can be cost-effective. Just ensure you return it to the Adamas office at least 1 hour before all-aboard to avoid any logistical delays at the rental drop-off.

What happens if the wind is too strong for the tender?

Milos is prone to the Meltemi winds. If the swell in the bay exceeds safety limits, the ship may cancel the port call entirely or delay disembarkation. This is most common in July and August. If you have pre-booked an independent boat tour, ensure they have a clear refund policy for 'port cancellation.' Most reputable operators in Adamas will provide a full refund if the ship cannot anchor.

Are the Catacombs of Milos better than the ones in Rome?

They are different. The Milos Catacombs are smaller but more physically intimate, and the volcanic stone carvings are unique. While Rome's catacombs are more extensive, the Milos site feels much older and less 'managed.' It is a 45-minute total commitment including transit, so it is a high-value historical stop that doesn't consume your entire day. Pair it with the nearby Ancient Theater for the best historical overview.

Which is the best village for a quiet lunch away from tourists?

Mandrakia is your best bet. It has only one restaurant (Medusa), but the setting is breathtaking and it lacks the commercial bustle of Adamas. Pollonia is also excellent but more developed. If you want a truly quiet experience, find a small cafe in the backstreets of Trypiti, where the locals eat after visiting the pharmacy or post office.

Is there a beach I can walk to from the cruise pier?

Yes, Lagada Beach is a 10-minute walk west from the Adamas pier. It is a decent sandy beach with some trees for shade. However, it is a 'town beach' and does not compare to the spectacular geology of Sarakiniko or Fyriplaka. If you just want a quick dip in the Aegean Sea before heading back to the ship, it is perfectly adequate and free.

Do I need to book a Kleftiko boat tour in advance?

In June, July, and August, yes. These tours fill up days in advance. In the shoulder months (May, September, October), you can often find a spot by walking along the Adamas waterfront the morning you arrive. For guaranteed placement and to ensure the tour fits your ship's specific window, booking through WaterwaysCruise.com is highly recommended.

What is the one thing I should buy on Milos?

Look for 'Peltes.' It is a traditional tomato paste made from sun-dried Milian tomatoes, salt, and olive oil. It is incredibly concentrated and flavorful. You can find jars at the local cooperative in Adamas for about €8 (~$9.20 USD). It is a unique taste of the island's volcanic soil that you can easily pack in your luggage.

Is the Venus de Milo original in the Plaka museum?

No. The original Venus de Milo is in the Louvre in Paris. The Archaeological Museum in Plaka holds a high-quality plaster cast given by the Louvre. However, the museum is still worth a visit for its Neolithic obsidian collection and other local finds that provide context for the island's 9,000-year history.

How much should I pay for a taxi to Sarakiniko?

The standard fare from the Adamas pier to Sarakiniko is €15–€18 (~$17.50–$20.50 USD) each way. Always agree on the price before the driver starts the car. There is a fixed-price board at the taxi rank, but some drivers may try to charge a 'waiting fee' if you ask them to stay. It is better to take their phone number and call them 20 minutes before you want to be picked up.