Join a marine biologist for a small-group snorkel at Los Arcos—rocky islets off Mismaloya—where shallow reefs, schooling fish, and protected channels make for a concise, wildlife-rich half-day on the water.
More ways to explore the area's outdoor wonders
The boat eases away from the marina and the shoreline shrinks, heat and city noise trading places with wind and a steady blue that seems to go on forever. Los Arcos—three volcanic granite islets pushed up from the seabed—come into view as stony figures rising from the bay, their narrow channels and underwater ledges drawing fish and divers alike. A marine biologist leads the group, pointing out feeding behaviors and coral formations while the current teases you toward patches of bright reef.
Difficulty
moderate
Duration
4 hours
Fitness Level
Moderate fitness; comfortable swimming ability and basic snorkeling stamina for multiple short swims
Wildlife
History
Mismaloya gained international attention in the 1960s as filmmakers and actors visited the bay; local fishing and tourism traditions predate that era.
Conservation
Los Arcos sits within protected marine areas with rules against touching coral and anchor damage; visitors are encouraged to use reef-safe products and follow guide instructions.
Reserve your spot on the Small Group Snorkeling in Los Arcos, Puerto Vallarta today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Morning departures for calmer seas
Book the earliest slot you can—morning winds are usually lighter and visibility is better for snorkeling.
Use reef-safe sunscreen
Apply biodegradable sunscreen before boarding to protect corals; reapply with a shirt or after the trip.
Prevent seasickness proactively
If you get queasy, take medication an hour before departure and focus on the horizon during the cruise.
Mind the no-touch rule
Never touch or stand on coral; maintain buoyancy and keep fins horizontal to avoid accidental damage.
Reef-safe sunscreen
Protects your skin and the reef—apply before boarding and use biodegradable formulas.
summer
Swimsuit and quick-dry towel
Comfortable swimwear and a towel make transitions on and off the boat easier.
summer
Water shoes or reef booties
Useful for rocky boarding points and for extra traction on wet boat decks.
spring
Light long-sleeve rash guard
Provides sun protection and a bit of warmth on windy mornings or cooler seasons.
winter