Set off from Puerto Vallarta for a full-day catamaran to the Islas Marietas: kayak through sea caves, snorkel with tropical fish, and watch for dolphins and humpback whales. This practical guide outlines what to expect, how to prepare, and local conservation rules to know before you go.
More ways to explore the area's outdoor wonders
The catamaran slips free of Puerto Vallarta’s marina and the shore falls away into an open sweep of blue. Wind catches the sails, the engine’s hum becomes a steady promise, and the twin isles of Marietas rise as dark volcanic silhouettes studded with sea caves. Guides pass out fins and life vests; kayaks and stand-up paddleboards wait for the first eager riders.
Difficulty
moderate
Duration
6–7 hours
Fitness Level
Suitable for most fitness levels; basic swimming ability helpful for snorkeling and paddleboarding.
Wildlife
History
The Marietas were formed by submarine volcanic activity and later suffered bombing practice that altered the landscape; protection came as tourism and conservation priorities grew.
Conservation
Islas Marietas are a protected national park with strict visitor limits and rules—use reef‑safe products, avoid touching marine life, and follow guides to minimize impact.
Reserve your spot on the Full Day Tour Isla Marietas with Meals and Open Bar today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef‑safe sunscreen
Use biodegradable, reef‑safe sunscreen and reapply in the shade to protect coral and marine life.
Wear a lightweight rash guard
A long‑sleeve swim shirt protects you from sun and jellyfish while snorkeling and on the boat deck.
Prepare for motion sickness
Take motion‑sickness meds before boarding if you’re prone to seasickness; the crossing can be choppy depending on conditions.
Respect park limits
Follow guide instructions—access to certain beaches and caves is limited by park authorities to reduce impact.
Reef‑safe sunscreen
Protects you and the reef—apply before boarding and reapply in the shade.
summer
Rash guard or quick‑dry shirt
Provides sun protection and reduces chafing during extended snorkeling and paddle time.
summer
Light water shoes
Protects feet on rocky landings and when stepping from boats onto uneven shorelines.
spring
Anti‑nausea medication or acupressure bands
Useful for those prone to seasickness during the crossing.