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.
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.
Book with Vallarta Natours
Book directly with Vallarta Natours for the best rates and real-time scheduling.
Reserve NowVerified experiences and guided adventures in the surrounding area.
Operated by Vallarta Natours · Puerto Vallarta, Jalisco
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.
moderate.
4 hours.
Moderate fitness; comfortable swimming ability and basic snorkeling stamina for multiple short swims
No—basic snorkeling skills and comfort in the water are sufficient; the guide gives a safety briefing and assists in the water.
Yes, snorkel equipment is provided for all participants, although some guests prefer to bring a personal mask for fit and fog control.
Children can join but must be accompanied by an adult; child rates apply when sharing with two paying adults and ID may be required.
Trips may be canceled for safety or insufficient participants; in that case you’ll be offered an alternative date or a full refund.
Mismaloya gained international attention in the 1960s as filmmakers and actors visited the bay; local fishing and tourism traditions predate that era.
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.
Vallarta Natours operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




Book with Vallarta Natours
Book directly with Vallarta Natours for the best rates and real-time scheduling.
Reserve Now