Caño Island's dive sites span shallow reef gardens to deep pinnacles and walls, all reached by boat. The Whitetip Reef Shark is a near-constant presence across sites, while Whale Shark, Humpback Whale, and Scalloped Hammerhead draw divers seeking larger pelagic encounters. Cave and arch formations at sites such as The Arch, Sharks Cave, and Iglesias add structural variety. Conditions suit all levels, from beginner-friendly reefs to demanding drift and drop-off dives requiring strong buoyancy control.
Monthly water temperature across Caño Island's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature stays remarkably stable year-round, hovering between warm and very warm, which means thermal comfort is rarely a concern regardless of when you visit. Diver reports peak strongly in December through May, with visibility reaching its best during the drier months of that window. The rainy season brings slightly quieter conditions but can coincide with productive pelagic encounters.
18 operators
13 more sites to explore
Water around Caño Island stays near 28°C all year, based on satellite sea-temperature data for its dive sites.
With water around 27–28°C, a rash guard or 3mm shorty works in Caño Island year-round.
Fin maps 25 sites in Caño Island (25 scuba diving sites and 2 snorkelling spots, with some suited to both).
Across Caño Island's dive sites, February, March, April, May, November and December are most often reported as the best months to visit.
The Whitetip Reef Shark is observed across the vast majority of sites and is effectively a reliable feature of almost any dive here. Whale Shark sightings are common rather than rare, and Humpback Whale encounters have been recorded by divers. Scalloped Hammerhead and Oceanic Manta Ray are among the signature species associated with the area.
The site mix covers a real range of skill levels. Beginners can explore shallower reef sites such as The Garden, The Arch, and Campanario in comfortable conditions. Intermediate divers have cave and wall options, while advanced divers can take on deep pinnacle and drift sites like Bajo del Diablo and Devils Bottom.
All dive sites at Caño Island are boat-access only. There are no shore-entry dives available. Costa Rica Adventure Divers is the operator serving the area, so arranging a boat trip through them is the standard route for reaching any site.
The sites cover a wide variety of formations: open reef, pinnacles, walls, drop-offs, caves, arches, and swim-throughs. Cativo adds a wreck option with a sunken sailboat on a sandy slope. This variety means repeat visits can feel quite different depending on which sites a dive operator selects.
