Manuel Antonio offers a compact but varied collection of boat-access reef sites, from shallow sloping banks suited to beginners through to deeper pinnacles, walls and canyons that reward intermediate divers. Triggerfish, Wrasses and Panamic Sergeant Major are seen across virtually every site, while Snowflake Moray, Barberfish and Spiny Lobster are near-constant companions. Green Sea Turtle and Grey Reef Shark appear regularly, and Whale Shark has been recorded occasionally. Shore snorkelling is available directly off Playa Manuel Antonio's calm, shallow reef.















Monthly water temperature across Manuel Antonio's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature stays consistently warm throughout the year, dipping only slightly in November. The best-months data points strongly toward December through April as the prime window, with visibility at its most reliable during the dry season. Currents at exposed sites such as Punta Quepos and El Toro can be notable, making those dives more rewarding on calmer days.
5 operators
10 more sites to explore
Water temperature around Manuel Antonio ranges from about 26°C in November to 28°C in January, based on satellite sea-temperature data for its dive sites.
In the warm season (about 28°C) a rash guard or 3mm shorty is comfortable in Manuel Antonio; in the coldest months (about 26°C) step up to a 3mm full suit.
Fin maps 18 sites in Manuel Antonio (12 scuba diving sites and 8 snorkelling spots, with some suited to both).
Across Manuel Antonio's dive sites, February, April and December are most often reported as the best months to visit.
Triggerfish, Wrasses, Barberfish and Snowflake Moray are observed across the vast majority of sites. King Angelfish and Cortez Angelfish are also very commonly reported. Green Sea Turtle and Grey Reef Shark appear regularly, and Whale Shark has been recorded on occasion at offshore sites.
Several sites are rated for beginners, including South Point, El Aquario, Starfish Garden and Geos Ridge, all of which offer manageable depths and boat access. Intermediate sites such as Canyon Reef, El Toro and Punta Quepos involve deeper profiles and more complex topography, including walls and canyons. Beginners are well served, particularly on the shallower sloping reef sites.
Almost all dive sites in Manuel Antonio require a boat, with operators including Costa Rica Dive and Surf, Oceans Unlimited, Blacktip Divers Costa Rica and Rica Freedivers running trips to offshore sites. Shore diving is not a significant feature of the dive offer here, though snorkellers can enter directly from Playa Manuel Antonio.
The site mix ranges from flat reef pinnacles and canyon formations to walls and sloping banks. South Point combines a drop-off wall, canyon and reef in a single dive, while Starfish Garden is a gentler sloping bank ideal for relaxed dives. El Toro and Punta Quepos sit further offshore and offer more dramatic topography with stronger potential for current.