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San Blas, Nayarit · Travel guide

San Blas Mexico Mangrove Boat Tours and Hilltop Fort Ruins

San Blas is a small port town on the Pacific coast of Nayarit, once a major base for Spanish ships and now a relaxed stop for beaches, birds and history. It was named a Pueblo Mágico, which recognizes its cultural value.

By WiserMap TravelUpdated October 2026 8 places9 min read
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At a glance San Blas
  1. Best timeJanuary to May is the driest and most comfortable stretch.
  2. How longPlan two or three nights to see the fort, the reserve and the bay.
  3. Getting thereReach it by road from Tepic, Puerto Vallarta or Guadalajara.

Why visit San Blas

San Blas feels different from the resort towns farther south on the Riviera Nayarit. Its plaza is lively but small, its beaches are long and uncrowded, and its history runs deep.

Biting insects kept mass tourism away, so the town stayed modest. You come here for slow mornings on a boat in a mangrove, surf in a long bay, birds in the wetlands and sunsets over the pier.

The town also works well as a quiet base for exploring the wider Nayarit coast. Surfers, birders and history lovers all find something to do, and the pace of the plaza at dusk, when families gather and vendors set out their crafts, is a pleasure in its own right.

History in town

Stone ruins of the old fort on the hill above San Blas, Nayarit

Fuerte de San Basilio

The fort stands on a hilltop above the harbor and was built to defend the port's trade. You can walk through the remains and enjoy views over the water and town.

The hillside fort above San Blas was built to defend the port. Photo: Heterotrofo, Wikimedia Commons, CC BY-SA 4.0

Ruined church walls on a hill above San Blas, Nayarit

The ruined church

On the hill behind the fort stand the ruins of a church from 1769. The bells of San Blas are said to have inspired a poem by Henry Wadsworth Longfellow, one of his last.

The ruins of the old church stand on the hill behind the fort. Photo: Mechitas, Wikimedia Commons, CC BY-SA 3.0

Pier and boats at San Blas harbor, Nayarit

The old customs house

The ruins of a nineteenth-century customs house stand on Calle Benito Juárez, a few blocks from the main plaza. It is a short stop on a walk through the center.

The San Blas pier is a place for boat trips and evening walks. Photo: Esteban Perez Bañuel…, Wikimedia Commons, CC BY-SA 3.0

Boat moving through mangrove channels at La Tovara, San Blas, Nayarit

The pier

The renovated pier is a good place to walk in the evening, with benches, trees, vendors and sculptures. It inspired a well-known song by the Mexican band Maná.

La Tovara is a mangrove nature reserve reached by small boat from near San Blas. Photo: WendyAvilesR, Wikimedia Commons, CC BY-SA 4.0

Nature and beaches

Wide beach and surf at Matanchén Bay, San Blas, Nayarit

La Tovara

La Tovara is a mangrove reserve of channels and spring-fed pools, reached by small boat. Tours leave from the Matanchén bridge when enough passengers have gathered.

Matanchén Bay is known for long, gentle surf waves. Photo: House, Wikimedia Commons, CC BY-SA 3.0

Beach palapas at Playa Las Islitas, San Blas, Nayarit

Bahía de Matanchén

This long bay south of town is known for gentle, long surf. Surfers have called it one of the longest rideable waves in the world, though a storm filled part of the bay with sand and reduced the size of the waves.

Playa Las Islitas has seaside palapa restaurants along the bay. Photo: Esteban Perez Bañuel…, Wikimedia Commons, CC BY-SA 3.0

Playa Las Islitas

Las Islitas is a beach with seaside palapa restaurants that serve regional seafood. Plan a long lunch here and stay for the sunset.

Island village of Mexcaltitán in a lagoon, San Blas, Nayarit

Birdwatching

The estuaries and palm forests around San Blas draw migratory birds, and the annual Christmas Bird Count regularly records more than two hundred species. Hire a local guide for the best results.

Mexcaltitán is an island village that some historians link to the origin of the Mexica people. Photo: Luis Méndez Covarrubias, Wikimedia Commons, CC BY-SA 4.0

Farther afield

Cathedral of Tepic with its twin towers, San Blas, Nayarit

Mexcaltitán

Mexcaltitán is an unusual island village in a lagoon, which some historians regard as the original homeland of the Mexica people.

Tepic is the capital of Nayarit and lies inland from San Blas. Photo: Olallo reyes, Wikimedia Commons, CC BY-SA 3.0

Tepic

The state capital lies about sixty-four kilometers east of San Blas, and buses connect the two. Visit the cathedral, the plaza and the regional museum, where you can learn about the shaft tomb culture of western Mexico.

Food and local flavors

Fresh seafood rules here. Pescado zarandeado is a grilled fish marinated in lime, soy sauce and chile, often served with onions, tomatoes and tortillas. Camarones a la momia are shrimp wrapped in bacon with cheese, then grilled, and several beach restaurants serve them.

To drink, try tejuino, a cold corn drink sweetened with unrefined sugar and served with lime and salt. Local cooks often use mangrove wood for cooking fires, which gives smoky flavor to grilled food.

Popular dishes to try in San Blas

Pescado zarandeado in San Blas, Nayarit
Pescado zarandeado Pescado zarandeado is a grilled fish marinated in lime, soy sauce and chile, often served with onions, tomatoes and tortillas.Photo: El Nuevo Doge, Wikimedia Commons, CC0
Tejuino in San Blas, Nayarit
Tejuino To drink, try tejuino, a cold corn drink sweetened with unrefined sugar and served with lime and salt.Photo: Christian Cariño, Wikimedia Commons, CC BY 4.0

Where to stay

The right base depends on how you like to spend your days. Centro is the best choice if you want to walk to the plaza, the pier and the restaurants, and it suits first-time visitors and those without a car. Several historic hotels sit around courtyards in the center, and the walk to the beach is short.

Playa Las Islitas suits travelers who want a beach stay with cabins steps from the water and sunset views. It is quieter at night, though you will need transport for dinner in town.

Where to stay in San Blas

Centro, San Blas, Nayarit
Centro Centro is the best choice if you want to walk to the plaza, the pier and the restaurants, and it suits first-time visitors and those without a car.Photo: Diario de Madrid, Wikimedia Commons, CC BY 4.0
Playa Las Islitas, San Blas, Nayarit
Playa Las Islitas Playa Las Islitas suits travelers who want a beach stay with cabins steps from the water and sunset views.Photo: House, Wikimedia Commons, CC BY-SA 3.0
Bahía de Matanchén, San Blas, Nayarit
Bahía de Matanchén Bahía de Matanchén fits surfers, campers and anyone who wants the long bay at their door, and it is also close to the starting point for La Tovara tours.Photo: Esteban Perez Bañuel…, Wikimedia Commons, CC BY-SA 3.0
San Blas old town, San Blas, Nayarit
San Blas old town One of the best areas to base yourself in San Blas.Photo: Zarateman, Wikimedia Commons, Public domain

Best time to visit

The best months run from about January to May, when the dry season brings warm, comfortable weather without much rain. Whale watching tours are offered from San Blas, and the cooler months are the usual time to see whales passing the coast.

Summer and early autumn bring heavy rain and humidity, and storms and mosquitoes are most noticeable from July to October. Surfers visit all year, and the water is warmer from April through October.

Getting there and getting around

San Blas is about 160 kilometers north of Puerto Vallarta and 64 kilometers west of Tepic, and about three hours by road from Guadalajara. The nearest large airports are Puerto Vallarta and Guadalajara, and Tepic has a small airport.

In town, you can walk to the beaches, restaurants and bars. Local buses run along the southern Nayarit coast, and taxis are easy to find. A rental car helps for reaching Matanchén Bay, Las Islitas and the reserve at your own pace.

A suggested itinerary

First day

Walk to the fort and church ruins in the morning, while the air is still cool, then wander the plaza and the old customs house. Stop for a cold drink in a shaded cafe.

Second day

Take an early boat tour through La Tovara and look for birds along the channels.

Third day

Go birdwatching with a local guide at dawn, then have a slow breakfast in town. If you have time and a car, continue to Tepic or plan a longer day to Mexcaltitán.

Practical tips

  • Check your government's current travel advisory before you go.
  • Bring insect repellent, especially for dawn, dusk and the fort.
  • Carry cash for tours, small restaurants and buses.
  • Confirm tour departures at the Matanchén bridge, as boats leave when enough passengers have arrived.
  • Bring water, a hat and sunscreen for boat trips.
  • Wear sturdy shoes for the hill walk to the fort.
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