Country Guide

Best Scuba Diving in Costa Rica

2 dive sites in Costa Rica, ranked by our data-driven Score across 12 categories including marine life, coral health, visibility, operator quality, and value. Average score: 61.1/100.

Costa Rica's Cocos Island — an 8-hour sailboat ride into the Pacific — is consistently ranked among the top five dive sites on Earth for sheer big-animal spectacle: hundreds of hammerheads, whale sharks, mantas, and bull sharks school in the nutrient-upwelling currents around the island. The mainland coast adds more accessible hammerhead encounters at Bat Islands and bull shark dives at Caño Island. Strong currents demand experience, but the payoff is unmatched for pelagic enthusiasts.

Best For
Hammerhead SchoolsWhale SharksPelagicsLiveaboard ExpeditionsAdvanced Divers
Best Months
June to November (Cocos Island)
US Visa
US passport holders do not need a visa for stays up to 90 days. A tourist entry fee is collected on arrival.
  1. #1 · Central America
    Cocos Island
    Score 64.6 · Pacific Ocean
  2. #2 · Caribbean
    Catalina Islands
    Score 57.6 · Guanacaste