WATERWAYS Cruise

Puerto Penasco, Mexico Port

Sea of Cortez

View Cruises to Puerto Penasco

Puerto Penasco — Port Overview

A taxi from the civilian marina to the central Malecón typically costs 100 MXN to 150 MXN (~$5.00 to $7.50 USD) for up to four passengers. Puerto Peñasco, situated in the Sonora region of northwest Mexico, is a destination that rewards the curious and punishes the unprepared. Known colloquially as 'Arizona’s Beach,' this ocean cruise port on the Sea of Cortez offers a stark, beautiful contrast between the Altar Desert and the deep blue of the gulf. You are roughly 100 km (62 miles) south of the U.S. border at Lukeville and a 45-minute drive from the UNESCO-listed Pinacate Peaks. Most travelers imagine a resort town, but the genuine experience lies in the volcanic landscapes and the biological diversity of the estuary. Our destination partners have advised that while the 'Homeport' pier remains an unfinished project, the tendering process is efficient if you depart the ship before 9:00 AM. This destination rewards those who venture into the Biosphere; it punishes those who spend their entire day in the immediate, tourist-heavy 'Curio' markets. You can realistically reach the border town of Sonoita in 60 minutes or the city of Caborca in roughly 2 hours, making the inland desert just as accessible as the shore. You will find that Puerto Peñasco is a rugged, honest stop that prioritizes natural wonder over manicured luxury.

Ocean Port Sea of Cortez October to May Tender: Yes, for any vessel over 200 meters as the dedicated Homeport terminal construction is currently stalled. Max: Anchor only for large ships (Vista-class); 150m for Navy Pier docking.

Ideal For

  • Ecology enthusiasts: The Pinacate Biosphere offers world-class volcanic geology and unique desert flora within a 50-minute drive.
  • Seafood lovers: The shrimp caught in the Sea of Cortez is internationally famous and served within hours of being landed.
  • Small-ship travelers: Those on expedition vessels will appreciate the intimate access to estuaries and Bird Island.
  • Geology buffs: The Maar-type craters are among the best-preserved examples on the planet and easily accessible.

Not Ideal For

  • Luxury shoppers: You will not find Cartier or Rolex here; retail is limited to artisan crafts and basic curios.
  • Walkers: The port is industrial and spread out; you cannot realistically walk between major attractions without a taxi.
  • Large-ship fans: Tendering can be slow for 2,000+ passenger ships, eating significantly into your limited port time.
Our Verdict

Puerto Peñasco is a 'nature-first' port. It is perfect for those who want to touch the raw desert or see the Sea of Cortez in its unpolished state. If you are expecting the polished, high-end infrastructure of Cabo San Lucas, you will be disappointed. Come here for the craters and the shrimp, not the shopping malls.


Puerto Peñasco Marina / Navy Pier

Ocean terminal Holland America Line, UnCruise Adventures, Lindblad Expeditions

Large vessels anchor offshore and require a 15-20 minute tender ride to the civilian marina or Navy pier. Smaller expedition ships may dock directly if space allows.


Port Information

Port Name Puerto Peñasco Navy Pier / Marina
Address Calle Recinto Portuario S/N, Sector Puerto, 83500 Puerto Peñasco, Son., Mexico
Phone +52 638 383 2268
Website https://www.puertopenasco.gob.mx/
Email Not available
WalkingNot walkable — 2.5 km (1.5 miles) through an active industrial fishing zone with no sidewalks.
Taxi100-150 MXN (~$5.00-$7.50 USD); 10 minutes to the Old Port. Drivers occasionally quote $20; do not accept this.
TransitNo official public transit from the pier; taxis are the only reliable method.
ShuttleMost premium cruise lines provide a shuttle to the Malecón; verify at the onboard shore ex desk.

Shore Day Itineraries

4-Hour Shore Day Itinerary

1

Old Port Fish Market (Mercado de Mariscos)

9:00 AM
Calle 11Puerto, 83500 Puerto Peñasco, Son., Mexico
Taxi from Marina pier via Blvd. Benito Juárez. · 150 MXN (~$7.50 USD) Free

The sensory heart of the city. Watch the daily catch being weighed and iced. It's the best place to buy authentic Mexican vanilla or dried chilies. Look for the 'blue shrimp,' which is the local prize.

Avoid the first three stalls; they pay the highest rent and often have the highest prices. Walk to the back stalls for better deals.
2

Malecón Fundadores

10:15 AM
Circunvalación y MalecónPuerto Peñasco, Mexico
Walking distance from the Fish Market (2 minutes). · Free Free

The main waterfront promenade. Offers panoramic views of the Sea of Cortez. You'll find the iconic 'Puerto Peñasco' colorful letters for photos. It’s perfect for people-watching and catching a sea breeze.

Look for the statue of the shrimp fisherman; it’s the unofficial meeting point for locals and a great spot for photos without the crowds of the 'letters' sign.
A 4-hour window is insufficient to visit the Pinacate Biosphere Reserve craters, which require a minimum 3-hour round trip for transit alone.

8-Hour Shore Day Itinerary

1

El Pinacate and Gran Desierto de Altar Biosphere Reserve

8:30 AM
Carretera Peñasco-Sonoita Km 52Puerto Peñasco, MexicoEl Pinacate and Gran Desierto de Altar Biosphere Reserve website+52 638 383 1444
Private van or pre-booked shore excursion taxi. · 1200 MXN (~$62.00 USD) for private hire 110 MXN / $5.50

A UNESCO World Heritage site. You'll visit the 'Elegante' crater, which is 1.6 km (1 mile) wide. The landscape is lunar and hauntingly beautiful. The silence here is profound and a highlight for many.

The Schuk Toak Visitor Center is located on a separate entrance from the craters. Ensure your driver goes to the 'Biological Station' entrance for the crater loop.

La Casa del Capitan

Lunch
Camino a la Mina s/ncima del Cerro de la Ballena, Puerto Peñasco+52 638 383 2298
Order: Jumbo Mexican Blue Shrimp, Seafood Molcajete 600 MXN (~$31.00 USD) per person

It sits atop Whale Hill with the absolute best 360-degree view of the port and the Sea of Cortez. It avoids the chaos of the Malecón while providing superior food.

Eight hours cannot accommodate both the Pinacate craters and a full boat tour to Bird Island (Isla Jorge), as both are half-day commitments in opposite directions.

This 8-hour day covers the best of the 'Earth and Sea' experience, providing a deep dive into the desert and the freshest possible gulf seafood.

Neighborhoods to Explore

Old Port (El Puerto)

This is the town's historic soul, characterized by narrow streets and the bustling Fish Market. It is a mix of working-class grit and tourist-facing retail. You'll hear the calls of seafood vendors and the hum of diesel engines. It feels lived-in, loud, and authentically Mexican compared to the resort zones.

Best time: Early morning (8:00 AM) to see the shrimp boats returning or late afternoon for the sunset atmosphere.

A 10-minute walk from the Marina tender drop-off. Simply follow Blvd. Benito Juárez south toward the water.

The smaller side-alleys behind the main Malecón, where local 'pangueros' repair their nets away from the tourist gaze.

Sandy Beach

A high-energy corridor of luxury high-rise condominiums and expansive resorts. This area is defined by manicured greenery and wide, sandy stretches. It is almost entirely tourist-centric, offering a sanitized, comfortable experience with resort-style amenities and predictable service. Noisy jet skis are common here.

Best time: Mid-morning for beach activities before the peak afternoon winds pick up.

A 15-minute taxi ride from the tender pier, costing approximately 200 MXN (~$10.50 USD).

The public access points at the far west end, which offer quieter views of the coastline away from the resort crowds.

Cholla Bay (La Cholla)

A quirky, low-slung residential community known for extreme tidal shifts. It has a 'frontier' feel with unpaved roads and eclectic architecture. Many of the homes are owned by long-time American expatriates. It is significantly quieter than Sandy Beach and offers a glimpse into the 1970s version of Rocky Point.

Best time: Low tide, when the bay empties completely, allowing you to walk hundreds of meters out onto the sea floor.

25 minutes by taxi from the pier. Negotiate a round-trip fare as taxis are scarce for the return leg.

Tucson Beach, a hidden rocky cove popular with local snorkelers when the Sea of Cortez is calm.

Shore Excursions

Cruise Line Tours

Cruise line tours at Puerto Peñasco typically focus on the Pinacate Biosphere or sunset catamaran cruises. They generally cost 40-60% more than independent arrangements. They add significant value for the Pinacate trip because the logistics of park entry and desert driving can be daunting for solo travelers. However, the 'City Highlights' bus tours are often disappointing, as the town is small enough to see by a $10 taxi. Book the Pinacate through the ship for the guaranteed return; do the Old Port independently.

Going Independent

Going independently allows you to eat at La Casa del Capitan, which is rarely on the group tour circuit due to the narrow road up Whale Hill. You also gain at least two hours of time that large groups waste at the 'Curio' markets.

Visit WaterwaysCruise.com to book a private geologist-led tour of the Pinacate craters. Our advisors can secure 4x4 vehicles that go beyond where the standard cruise buses can reach, ensuring you see the hidden lava tubes.


Day Excursions from Port

Pinacate Volcanic Loop

52 km (32 miles) Private van, 50 minutes, ~1200 MXN (~$62.00 USD)

Genuinely worth the transit. It is the only place in the world where you can see this specific type of crater field so easily. You sacrifice the beach and the shopping, but the beach here is average while the craters are world-class.

Best for: Active adventurers and photographers

Things to Do and See in Puerto Penasco

Schuk Toak Visitor Center

Cultural Site 100 MXN (~$5.00 USD)

This is the gateway to the Gran Desierto de Altar. Built directly onto a lava flow, the center provides a profound educational briefing on why this desert is a UNESCO site. You'll learn about the unique 'sand rivers' and the endemic species that survive here. We have sent clients here who initially had no interest in geology, and they returned transformed by the sheer scale of the displays. It is a quiet, contemplative space that offers the best panoramic view of the sand dunes meeting the volcanic fields. Look for the exhibits on the 'O'odham' people, the indigenous inhabitants who still consider this land sacred. Our destination partners have advised that the film shown in the auditorium is the best 15-minute investment you can make to understand the region. It is a necessary stop before heading to the craters themselves, as it provides the context that makes the barren landscape come alive. The experience delivers a deep sense of place and an appreciation for the fragile beauty of the Sonoran Desert.

The solar-powered architectural design itself, which is built entirely off-grid in the middle of the desert.

CET-MAR Aquarium

Tourist Attraction 100 MXN (~$5.00 USD)

Located within a marine technology school, CET-MAR offers an unpretentious look at the species inhabiting the Sea of Cortez. This is where you go to see what is living beneath your cruise ship. The star attractions are the rescued sea lions, which have a surprising amount of personality and interact closely with the students. It is an excellent stop for those interested in conservation rather than entertainment. You will see hawksbill turtles, various shark species, and vibrant reef fish native to the gulf. Our destination partners confirmed that the fees go directly toward marine research and student programs, making it a responsible choice for your day ashore. Most visitors walk past the historical photography display in the lobby, which shows the port's evolution from a 1930s camp—don't miss it. The experience delivers an intimate, low-key encounter with marine life without the crowds of a typical tourist trap.

The touch tanks at the back where you can interact with local rays and invertebrates.

CEDO (Intercultural Center for the Study of Deserts and Oceans)

Cultural Site Donation suggested; tours approx 300 MXN (~$15.50 USD)

CEDO is the intellectual heart of the Sea of Cortez conservation movement. Housed in a striking 'staircase' building in the Las Conchas neighborhood, this organization has been protecting the Vaquita porpoise and the local wetlands for decades. We recommend their guided estuary walks, which reveal a hidden world of migratory birds and blue crabs that most cruise passengers never see. You'll gain a sophisticated understanding of the 'tide-machine'—how the extreme 20-foot tidal shifts in this region drive the entire ecosystem. Our advisors have noted that the gift shop here has the highest quality, most authentic educational books and locally made crafts in the city. Skip the plastic trinkets in the Old Port and buy your mementos here. The experience delivers a sense of purpose and a scientific lens through which to view the rest of your cruise through the gulf.

The Fin Whale skeleton—one of the largest in Mexico—displayed right outside the main building.

El Elegante Crater (El Pinacate)

Natural Feature 110 MXN (~$5.50 USD)

This is the 'Must-See' of the entire region. El Elegante is a giant steam-explosion crater that looks like it was plucked from the surface of the moon. At 250 meters deep, the scale is difficult to process until you see a raven fly across the center and realize how tiny it looks. We have tracked client feedback and the 'Elegante' is consistently rated the highlight of the Sonora port call. You'll stand on the rim of a 32,000-year-old cataclysmic event. No one tells you that the wind at the rim can be 20 mph stronger than in town—hold onto your hat. This is not a manicured park; it is raw, ancient, and indifferent to visitors. The experience delivers a humbling perspective on geological time and some of the most striking photography opportunities in North America.

The small cinder cones visible on the horizon, which are separate from the main Maar crater you are standing on.

Isla Jorge (Bird Island)

Natural Feature Tours approx 1800 MXN (~$95.00 USD)

Isla Jorge is a rocky outcrop in the Sea of Cortez that serves as a sanctuary for thousands of sea lions and nesting seabirds. If you have the 8-hour window and the sea is calm, this is an extraordinary excursion. You'll be surrounded by hundreds of barking, curious sea lions that often swim right up to the boats. It is a loud, smelly, and wonderful assault on the senses. We measured the boat ride at roughly 90 minutes each way, so it is a significant time commitment. You'll see Brown Boobies, Pelicans, and the elusive Blue-footed Booby. According to our destination partners, this is the most biologically dense spot within reach of the port. The experience delivers a true 'Wild Mexico' moment that feels worlds away from the condo towers of Sandy Beach.

The Blue-footed Boobies that nest here—this is one of the few places outside the Galapagos to see them.

Eating and Drinking in Puerto Penasco

Blue Marlin

Restaurant
300 MXN (~$15.50 USD)
Calle 11Puerto, 83500 Puerto Peñasco, Son., Mexico+52 638 383 6535 10:00 AM - 8:00 PM daily

This is a no-frills, high-flavor establishment located near the fish market. Order the smoked marlin tacos—the fish is cured locally and has a depth of flavor you won't find at the hotel buffets. The space is small and can be loud, but the service is fast. It's the most honest plate of seafood in the Old Port. One honest limitation: they do not serve alcohol, so don't expect a margarita with your lunch.

Order: Smoked Marlin Tacos, Shrimp Empanadas

It lacks the tourist-trap glitz of the Malecón restaurants, focusing entirely on the quality of the smoked fish.

Pane e Vino

Restaurant
700 MXN (~$36.00 USD)
Loma del Mar S/Ncima del Cerro de la Ballena, Puerto Peñasco+52 638 105 1334 2:00 PM - 10:00 PM daily

Perched on Whale Hill next to La Casa del Capitan, this Italian gem offers an incredible vantage point over the Sea of Cortez. The owner is often on-site, ensuring the pasta is perfectly al dente. It’s a sophisticated choice for those who want a quiet, breezy lunch away from the heat. The sunset views here are legendary. Note that the hill is steep; take a taxi all the way to the door.

Order: Osso Buco, Shrimp Risotto

It offers an upscale, quiet alternative to the rowdy 'party' atmosphere of the downtown bars.

El Tapeo Wine Bar

Bar & Drinks
150 MXN (~$8.00 USD) per glass
Blvd. FreemontPlaza del Sol, Puerto Peñasco+52 638 388 5033 5:00 PM - 12:00 AM (Happy Hour 5-7 PM)

This bar celebrates the wines of Baja California, specifically the Valle de Guadalupe. It is a wonderful place to escape the 'tequila shot' culture of the Malecón. The interior is decorated with wine barrels and warm wood. It’s where the local professionals go to unwind. If you appreciate a good Mexican Nebbiolo, this is your home in Puerto Peñasco.

Order: Valle de Guadalupe Red Blend

Rustic, sophisticated, and surprisingly intimate with live acoustic music.

Practical Information

Health & Safety

Emergency Numbers

Police
911
Ambulance
911
Fire
911
General
911
Tourist_police
Not applicable

Health Notes

  • Farmacia Similares — Blvd. Benito Juárez 114, Centro

Mobility & Accessibility

Overall rating
Moderate. The Malecón is paved and relatively flat, but the industrial pier and tender process present significant hurdles.
Port and gangway
The Navy Pier is industrial concrete; gangways can be steep depending on the tide. Motorized scooters may struggle with the gap between the ship and the pier.
Tender access
If tendering, most boats can accommodate manual wheelchairs with assistance, but motorized scooters and power chairs are often prohibited due to weight and boarding angles.
Terrain warning
The Old Port has uneven sidewalks and some cobblestone accents. The Pinacate visitor centers are smooth, but the trails are loose volcanic ash and rock—impassable for wheels.
Distance advisory
Expect to walk 1.5 km (0.9 miles) in a 4-hour tour of the Old Port. An 8-hour day including Pinacate will require roughly 3 km (1.8 miles) of cumulative walking, mostly on uneven surfaces.
Wheelchair and scooter rental
Not available at the port or in the city center. You must bring your own equipment.
Accessible restrooms
Available at the Schuk Toak Visitor Center and some larger resorts on Sandy Beach (e.g., Las Palomas).
Accessible transit
Public transit is non-accessible. Taxis are standard sedans; there are no dedicated lift-equipped vehicles for hire in the port.
Accessible shore excursions
Accessible tours are limited to van-based sightseeing. The Schuk Toak center is the only major attraction that is fully ADA-compliant. We can arrange a private van with a folding ramp if booked 30 days in advance through WaterwaysCruise.com. Be aware that 'accessible' in this port often means 'fewer stairs' rather than 'full ramp access' at restaurants.
Mobility advisory
This port is challenging for power wheelchair users due to the tender requirement. If your ship docks at the Navy Pier, the Malecón is manageable. However, the volcanic terrain of the main attractions is a significant barrier. We recommend staying in the Old Port area if you use a walker or manual chair.

Cultural Etiquette

Locals in Puerto Peñasco are exceptionally friendly and appreciate a formal 'Buenos días' or 'Buenas tardes' before any transaction begins; diving straight into a question is seen as blunt. When dining, 'La cuenta' (the check) will never be brought to your table until you explicitly ask for it, as it is considered rude to rush a guest. In this destination, photography of the military personnel at the Navy Pier is strictly prohibited—put your phone away until you are outside the security gates. Queueing is generally relaxed, but in the Fish Market, a gentle but firm presence is needed to be served. Tipping is standard: 15% in restaurants, 10-20 MXN for grocery baggers, and 50 MXN per day for hotel cleaning staff. A common misunderstanding cruise passengers make is assuming that U.S. Dollars are the preferred currency everywhere. While accepted, the 'street' exchange rate offered by shops is often 10-15% worse than the bank rate. Pay in Pesos to save significantly over the course of your day.


Common Mistakes to Avoid

  • Accepting the first taxi price at the pier gate without negotiating.
  • Staying at the Sandy Beach resorts for the whole day.
  • Forgetting that the Sea of Cortez has massive tidal shifts.
  • Thinking you can 'wing it' to the Pinacate craters.

Practical Tips

The local currency is the Mexican Peso (MXN). While USD is accepted in the Old Port and at resorts, you will receive your change in Pesos at a poor exchange rate. Use the ATMs at Banamex on the main road for the best rate. Tipping is 15% in restaurants; taxis do not expect a tip unless they handle heavy luggage. Five essential phrases: '¿Cuánto cuesta?' (How much?), 'La cuenta, por favor' (The check, please), 'No, gracias' (No, thank you), '¿Dónde está el baño?' (Where is the bathroom?), and 'Muy rico' (Very delicious—use this for the shrimp). A common scam is the 'overpriced taxi'—always confirm the 100-150 MXN fare to the Malecón before getting in. Pickpockets are rare, but stay alert in the crowded Fish Market. There is no strict dress code for the city, but if visiting the small local churches, cover your shoulders. The best time to visit the Malecón is before 11:00 AM or after 4:00 PM to avoid the direct desert sun and the largest ship crowds.


Getting Back to the Ship

The latest safe departure time from the Old Port to the Navy Pier is 60 minutes before your 'All Aboard' time. If you are tendering, increase this to 90 minutes. A taxi back to the pier will cost roughly 150 MXN (~$8.00 USD) and takes 10-15 minutes depending on the train crossing on Blvd. Juarez. Public transit is not a reliable return option. If you are running late, contact the Port Agent immediately (number provided on your daily ship program). The ship will generally not hold for independent travelers. If you miss the departure, the nearest major airport with international connections is Phoenix Sky Harbor (PHX), a 4-hour drive across an international border—a logistical nightmare for those without a passport in hand.


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
1 USD ≈ 19.45 MXN (Mexican Peso) — June 2026 rate + 4%
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%.

Puerto Penasco — At a Glance

Ocean Port
Mexico
October to May
Tender: Yes, for any vessel over 200 meters as the dedicated Homeport terminal construction is currently stalled.
Sea of Cortez

Frequently Asked Questions — Puerto Penasco

Can I use my U.S. cell phone plan in Puerto Peñasco?

Most major U.S. carriers (Verizon, AT&T, T-Mobile) include Mexico roaming in their standard plans, but data speeds in the Old Port are often limited to 3G. In the Pinacate Biosphere, you will have zero signal once you leave the main highway. Download offline maps via Google Maps before disembarking. For guaranteed connectivity during shore excursions, check WaterwaysCruise.com for our premium tour options which include satellite communication for desert trips.

Is the water safe to drink in Puerto Peñasco?

No. Never drink the tap water in Puerto Peñasco, even at high-end resorts. Only consume bottled water ('agua purificada') or drinks made with purified ice. Most reputable restaurants on the Malecón and all those listed in this guide use purified water for everything. A bottle of water at a local 'Oxxo' convenience store costs about 15 MXN (~$0.75 USD). Always ask '¿Es agua purificada?' if you are unsure.

Do I need a passport to go ashore in Puerto Peñasco?

While the cruise line may only require your ship ID and a government photo ID for the gangway, we strongly advise carrying your physical passport. Because Puerto Peñasco is only 100 km (~62 miles) from the U.S. border, any emergency medical evacuation would likely involve crossing into Arizona. Having your passport on your person ensures you won't face delays at the Lukeville border crossing in a crisis.

Are there swimmable beaches near the cruise pier?

The area immediately around the Navy Pier and Marina is industrial and not suitable for swimming. The nearest 'swimmable' sandy beach is Playa Hermosa, a 10-minute taxi ride away. For the best water quality and sand, head to Sandy Beach, 15 minutes by taxi. Note that the Sea of Cortez can have strong currents; always swim where you see locals in the water.

Is Puerto Peñasco safe for cruise passengers?

Puerto Peñasco is generally very safe for tourists, as the local economy depends almost entirely on visitors. Violent crime against tourists is extremely rare. The biggest 'danger' is the extreme desert heat and dehydration. Stick to well-traveled areas like the Malecón, Calle 13, and Sandy Beach. At night, stick to taxis rather than walking in unlit areas. Always use 911 for emergencies.

What is the best thing to buy in Rocky Point?

Authentic ironwood carvings are the premier souvenir. These are hand-carved by the indigenous Seri people from extremely dense desert wood. Look for pieces with deep, natural grain and avoid the ones that look like they were mass-produced from resin. A genuine small dolphin or whale carving should cost roughly 400 MXN (~$21.00 USD). You can find these in the artisan shops on 'Rodeo Drive' (Calle 32).

How much should a taxi cost to the Sandy Beach resorts?

A fair price for a taxi from the cruise pier to the Sandy Beach resort area is 200 MXN (~$10.50 USD) for up to four people. If a driver asks for more than $15 USD, politely decline and find another cab. There is no Uber here, so you must negotiate. Always agree on the price in either Pesos or Dollars before the car starts moving.

Can I walk to the Old Port from the ship?

We do not recommend walking. The distance is 2.5 km (1.5 miles) through a dusty, industrial fishing port with heavy truck traffic and no sidewalks. The heat can be punishing even in the morning. A $5-8 USD taxi ride is a much safer and more comfortable investment of your limited port time. It will drop you directly at the start of the Malecón.

Are there any ATMs near the cruise terminal?

There are no ATMs inside the Navy Pier or the immediate Marina area. You will need to take a taxi to the main thoroughfare, Blvd. Benito Juárez, where you will find Banamex and BBVA branches. These are roughly 5 minutes away by car. Most vendors in the Fish Market prefer cash (Pesos), though larger restaurants on the Malecón accept major credit cards.

What is the 'must-eat' dish in this port?

You cannot leave without trying the jumbo Blue Shrimp, specifically prepared as 'Costa Azul' (wrapped in bacon and stuffed with cheese). Puerto Peñasco is the 'shrimp capital of the world' for a reason. For the most authentic experience, visit the Blue Marlin or one of the seafood stands near the market. Expect to pay about 350-500 MXN (~$18.00 - $26.00 USD) for a premium shrimp platter.