A half-day small-boat excursion from Puerto Vallarta to the Marietas Islands that combines snorkel swims through lava arches with birdwatching and dolphin sightings. Ideal for travelers comfortable in the water and looking for dramatic coastal geology.
More ways to explore the area's outdoor wonders
The motor hum drops and the Pacific opens—salt spray stings the face and a ring of jagged volcanic rock appears on the horizon. On this small-boat trip from Puerto Vallarta, the Marietas Islands reveal themselves gradually: a low-lying chain of eroded lava, arches and caves where green water glows and seabirds wheel overhead.
Difficulty
moderate
Duration
3–3.5 hours
Fitness Level
Good cardiovascular fitness and basic swimming ability; able to climb in/out of a small boat and snorkel for short periods.
Wildlife
History
The Marietas were once used for military target practice; the resulting caves and blowholes catalyzed later protection and their national park status.
Conservation
The islands are a protected reserve—follow park rules, avoid touching coral, and use reef-safe products to minimize impact.
Reserve your spot on the Marietas Hidden beach trip from Puerto Vallarta today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Book morning departures
Sea conditions and visibility are generally calmer in the morning, improving snorkel conditions and wildlife sightings.
Wear reef-safe sunscreen
The park protects coral and marine life—bring biodegradable sunscreen to reduce impact.
Bring a waterproof ID
Minors need ID and port security is strict—keep documents dry and accessible.
Secure loose items
Waves and boarding can jostle gear; use dry bags and straps for cameras and phones.
Mask & snorkel
A well-fitting mask improves sightlines; many tours supply equipment but bringing your own ensures fit.
summer
Reef-safe sunscreen
Protects skin and the park’s coral and fish from harmful chemicals.
summer
Waterproof dry bag
Keeps ID, phone, and small items dry during transfers and rougher swells.
Reef shoes
Protects feet when entering/exiting over rock and rough sand.
summer