Marietas Islands Travel Guide

Just off the coast of Nayarit lies a place unlike any other — the Islas Marietas National Park, a protected natural wonder teeming with marine life, volcanic rock formations, and the world-famous Hidden Beach, tucked inside a collapsed cave. A dream destination for snorkeling, scuba diving, and bird watching, this paradise offers unforgettable encounters with nature in one of Mexico's most extraordinary settings.

For travelers staying in Puerto Vallarta's hotel zones, the Islas Marietas make for the perfect day trip adventure, combining natural beauty with exclusive access to one of Mexico's most unique destinations.

Where is Islas Marietas Located?

The Islas Marietas are located approximately 22 miles (35 kilometers) northwest of Puerto Vallarta, in the state of Nayarit, Mexico. This small archipelago sits in the pristine waters of Banderas Bay and forms part of a UNESCO Biosphere Reserve. The islands' strategic location between Puerto Vallarta and Punta Mita makes them easily accessible for day trips from the popular hotel zones.

How to Get to Islas Marietas

How to get to Islas Marietas from Puerto Vallarta is straightforward, though access is strictly regulated to protect this delicate ecosystem. The islands are only accessible by authorized boat tours departing from Puerto Vallarta, Nuevo Vallarta or private excursions from Punta Mita.

How long is the boat ride to Marietas Island? The journey typically takes 45 minutes to 1 hour by speedboat, or up to 1.5 hours by larger vessels, depending on your departure point and sea conditions.

Tour experiences range from quick 3-5 hour excursions focused on the Hidden Beach to comprehensive 7-hour eco-discovery adventures that combine the islands with other pristine locations like Majahuitas Beach.

Islas Marietas History - From Military Testing to Natural Sanctuary

The Islas Marietas history is as fascinating as their natural beauty. During the early 1900s, the Mexican military used these uninhabited islands for bomb testing and artillery practice.

Ironically, this military activity helped create some of the islands' most spectacular features, including the famous Hidden Beach, which was formed when underground caves collapsed from the explosions.

In the 1960s, marine biologist Jacques Cousteau campaigned for the islands' protection, recognizing their importance as a marine sanctuary. His efforts, combined with growing environmental awareness, led to the creation of the Marietas Islands National Park in 2005, ensuring the preservation of this unique ecosystem for future generations.

A Hidden Paradise with Protected Beauty

Tucked inside a collapsed volcanic crater, The Hidden Beach — or Playa del Amor — is one of Mexico's most surreal natural wonders. Completely concealed from view, this open-sky beach is accessible only by swimming through a narrow rock tunnel during low tide, making it as exclusive as it is breathtaking.

What makes it truly magical isn't just the dramatic entrance. It's the sense of peace and awe that greets you once inside: soft sand, gentle waves, and sunlight pouring through the crater's opening above.

The Islas Marietas are part of a UNESCO Biosphere Reserve and a sanctuary for over 90 species of birds. The most iconic is the rare blue-footed booby with its striking turquoise feet and unique mating dance. You'll also spot brown pelicans, frigatebirds, terns, gulls, and swallows nesting along the cliffs.

To preserve the islands' delicate environment, stepping onto the main islands is restricted. Most experiences take place from a boat or in the water — including snorkeling, birdwatching, and swimming.

Visits are strictly controlled to protect the area, and access is only allowed through authorized tours with certified guides who understand the marine environment and conservation requirements.

The Marietas Islands are unlike any other beach destination. Think hidden beaches tucked inside volcanic craters, vibrant marine life all around you, and a protected ecosystem that feels truly untouched.

Things to Do at Islas Marietas

While stepping onto the main islands is restricted to protect the ecosystem, the surrounding waters offer a wide range of unforgettable activities:

Snorkeling – Dive into crystal-clear waters to discover vibrant coral reefs, tropical fish, sea urchins, eels, and other marine life that thrive in this protected marine park. The underwater visibility is exceptional, especially during the dry season.

Scuba Diving – For certified divers, the islands offer some of Mexico's most pristine diving experiences. PADI-certified dive masters lead underwater explorations through unique rock formations and vibrant reefs teeming with marine life.

Birdwatching – Spot over 90 species of birds, including the iconic blue-footed booby, frigatebirds, pelicans, and more, nesting on the cliffs and soaring overhead.

Hidden Beach Access – When conditions allow and permits are available, swim through a sea tunnel to reach the Playa del Amor, one of Mexico's most unique and secluded beaches.

Seasonal Whale Watching – From December to March, witness the magical migration of humpback whales during winter months.

Photography & Scenic Cruising – The islands offer stunning backdrops for landscape and wildlife photography, whether you're on deck or in the water.

All activities are led by certified guides and operated under strict environmental regulations to preserve the beauty and integrity of this natural sanctuary.

Places to See - Natural Wonders of the Secret Island

The beauty of the Islas Marietas doesn't stop at the Hidden Beach. All around this volcanic archipelago, nature has carved out jaw-dropping landmarks that feel like scenes from another planet.

Playa del Amor (Hidden Beach)

The crown jewel of the Islas Marietas, Playa del Amor remains completely hidden from view until you swim through its secret entrance. This extraordinary beach, formed by military bombing decades ago, sits inside a collapsed volcanic crater with an open sky above. Access requires swimming through a narrow tunnel during low tide, making each visit feel like discovering a secret world.

Cueva del Amor

One of the first sights you'll encounter is the Cueva del Amor, a mesmerizing sea cave where waves echo inside ancient volcanic rock. This natural formation serves as a gateway to the islands' underwater wonders, where snorkelers can explore the cave's entrance and witness how centuries of ocean waves have shaped the volcanic landscape.

Natural Stone Arches and Blowholes

As your boat cruises along the coastline, you'll pass towering cliffs, dramatic natural stone arches, and powerful blowholes that spout ocean spray into the air — each formation shaped over thousands of years by wind and sea. These geological marvels provide spectacular photo opportunities and showcase the raw power of nature.

Coral Reefs and Marine Sanctuaries

Off the shore, vibrant coral reefs create an underwater paradise teeming with tropical fish, sea turtles, and diverse marine life. These protected waters serve as nurseries for countless species, making every snorkeling adventure a window into one of Mexico's most pristine marine ecosystems.

Bird Colonies and Nesting Areas

Above water, rugged cliff outcrops transform into living sanctuaries where over 90 bird species nest and thrive. The protected status of these nesting areas ensures that rare species like the blue-footed booby can breed undisturbed, offering visitors incredible wildlife viewing opportunities.

Every turn reveals something new — from the dramatic entrance to Playa del Amor, to the peaceful coves and remote inlets where nature remains untouched. You won't just see beautiful places; you'll feel like you've been transported to a hidden world few get to witness.

Best Time to Visit Islas Marietas

The Islas Marietas offer unique experiences year-round, each season bringing its own advantages. November to May provides dry weather and calm seas, ideal for snorkeling with excellent underwater visibility.

Whale season, from December to March, adds incredible excitement as humpback whales migrate through Banderas Bay. Summer months bring lush green landscapes and warmer waters, though occasional rain may affect some activities.

Each season offers different wildlife viewing opportunities and water conditions. Authorized tours operate year-round with experienced guides who adapt activities to current conditions, ensuring memorable experiences regardless of when you visit.

What to Pack for Your Islas Marietas Tour

Pack light but come prepared for a day of sun and sea. Essentials include a swimsuit, towel, sun protective clothing, and a hat or rash guard for sun protection. Bring a reusable water bottle, a waterproof bag for valuables, and motion sickness pills if needed.

Snorkeling gear is usually provided on tours, but certified divers should bring their PADI certification cards for scuba diving excursions. A waterproof camera or phone case is great for capturing memories, just be sure it's secure.

As a National Park, there are specific regulations in place, so please follow the instructions of your tour guides. Don't forget extra cash for dock fees, national park conservation fees, and photos.