Skip to content

Map Dive Sites Marine Life Sightings

OpenDive Atlas

An open-source atlas of the world's dive sites and the marine life seen at each one.

Map data © OpenStreetMap

About Contribute GitHub

Code MIT licensed. Photographs © their photographers and not covered by the MIT licence.

Catalina Islands, Costa Rica · OpenDive Atlas

Dive sitesCosta Rica

Catalina Islands

Guanacaste, Costa Rica

BoatReefIntermediateUnverified starter entry

Log a sighting here Rate this site Suggest an edit

Starter entry: details not yet confirmed by a diver

Location and conditions are approximate. If you've dived here, help other divers by checking the details.

Confirm or correct

About this site

Rocky islets with mobula and manta rays, whitetips and big schools.

Marine life commonly seen here

0 species

No marine life recorded yet

Log a sighting to start this site's species list.

Marine life you may encounter

No photos yet

Add photos to your sightings to build this gallery.

Recent sightings

No sightings logged yet

Be the first to log what you saw here.

Ratings & reviews

No ratings yet — be the first to rate this site.

Rate this site

Log in to rate marine life, visibility, photography and difficulty.

Site facts

Location: Guanacaste, Costa Rica
Coordinates: 10.4800° N, 85.8800° W
Dive type: Boat, Reef
Experience level: Intermediate
Visibility: 5–20 m
Water temperature: 20–28 °C
Maximum depth: 25 m
Typical current: Moderate

Coordinates are approximate. Always confirm entry points, conditions and permits with a local operator.