Intermediate The Bahamas
Bimini
Eighty kilometers from Florida, great hammerhead sharks in winter, and a mangrove that works as a nursery
In winter, over a sand bottom just past ten meters deep, an animal four meters long appears, with a hammer-shaped head and a dorsal fin that seems to belong to another scale entirely. Bimini is a place where that encounter happens regularly in winter.
In this profile, you'll find out why this tiny island concentrates encounters with big sharks, what role its mangroves play as a nursery, when the season falls, what the protocol requires, and what else you can dive here.
It's one of the places where the relationship between a coastal ecosystem and the large species that depend on it is clearest: the same mangroves that serve as a nursery for young sharks sustain what you later see out in open water.
Geography and access
Bimini is the westernmost island group in the Bahamas, just over eighty kilometers off the coast of Florida.
The Gulf Stream passes between that coast and the islands: a warm, powerful current that brings clear water and works as a wildlife highway.
The islands sit on the edge of the Great Bahama Bank: a shallow sand bank on one side and a drop into the deep channel on the other, within a very short distance.
The sheltered side of the islands is lined with mangrove, which traps sediment and shelters juveniles of many species, sharks among them.
Encounters with large sharks happen over shallow sand bottoms, which lets you photograph them in natural light without approaching the recreational depth limit.
Access is a short flight or ferry from Florida, and travel around the islands themselves is minimal.
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