Eastern Pacific
Bat Islands
Costa Rica
Bull sharks cruise past divers settled on the bottom at the Big Scare

Country
6 dive destinations in Costa Rica, up to 610 km apart. Water temperature across them runs 18–30 °C. 4 of 6 are in season in Dec–May. 23 named dive sites have their own pages.
Gulf of Papagayo & Playas del Coco · photo Chris Spain
RegionEastern Pacific
Numbers match the table below. Land outline: Natural Earth (public domain).
| # | Destination | Best months | Water | Visibility | Depth | Level | Access | Sites |
|---|---|---|---|---|---|---|---|---|
| 1 | Bat Islands | Jul–Aug | 19–29°C | 1–20 m | 12–30 m | Advanced | Day boat | 2 |
| 2 | Gulf of Papagayo & Playas del Coco | Varies | 20–30°C | 5–23 m | 5–30 m | Beginnersites from beginner to advanced | Day boat | 6 |
| 3 | Islas Catalinas | Nov–Apr | 18–28°C | 12–30 m | 7–30 m | Advanced | Day boat | 4 |
| 4 | Quepos & Manuel Antonio | Dec–Apr | 28–29°C | 4–22 m | 7–25 m | Intermediate | Day boat | 1 |
| 5 | Isla del Caño | Jan–Mar | 26–29°C | 6–25 m | 10–30 m | Intermediatesites from beginner to advanced | Day boat | 5 |
| 6 | Cocos Island | Jun–Oct | 23–28°C | 12–30 m | 16–33 m | Advanced | Liveaboard | 5 |
The most destinations are rated good or prime at the same time in Dec–May: 4 of 6. Each row is one destination's own season rating.
| Destination | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1Bat Islands | Fair | Fair | Fair | Fair | Good | Good | Prime | Prime | Good | Good | Fair | Fair |
| 2Gulf of Papagayo & Playas del Coco | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Fair |
| 3Islas Catalinas | Prime | Prime | Prime | Prime | Good | Fair | Fair | Fair | Fair | Fair | Prime | Prime |
| 4Quepos & Manuel Antonio | Good | Good | Good | Good | Fair | Fair | Fair | Fair | Fair | Fair | Fair | Good |
| 5Isla del Caño | Prime | Prime | Prime | Good | Good | Fair | Good | Good | Good | Fair | Fair | Good |
| 6Cocos Island | Good | Good | Good | Good | Good | Prime | Prime | Prime | Prime | Prime | Good | Good |
| Good or prime | 4 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 3 | 2 | 2 | 4 |
Destinations that fit within 200 km of each other end to end and share at least one month rated good or prime. Distances are straight lines between destinations, not travel routes.
86 km end to end
In season together: Dec–Apr
Eastern Pacific
Costa Rica
Bull sharks cruise past divers settled on the bottom at the Big Scare
Whitetip reef sharks nap in rock caves 10 to 20 minutes from the beach
Eastern Pacific
Costa Rica
Oceanic manta rays pass the volcanic rocks from November to April
Short boat rides to soft-coral canyons off Manuel Antonio National Park
Whitetip reef sharks stack up by the dozen on volcanic pinnacles
Hundreds of scalloped hammerheads overhead on the Bajo Alcyone seamount