Cocos IslandIsla del Coco National Park, Costa Rica
Aggregations on sand between the pinnacles.
residentnatural
Liveaboards run year-round; there is no closed season. The seasonal split is a quality trade rather than an access one: Jun-Oct rainy season gives the best hammerhead schooling and the worst visibility (9-20m), Dec-May dry season gives up to 30m visibility and less consistent schooling.
Destination detail