Koro Sea, Body of water between Viti Levu and Lau Islands, Fiji.
The Koro Sea is the body of water separating Viti Levu from the Lau Islands in Fiji. Coral reefs fringe many shorelines, and the seafloor drops to significant depths across this open expanse.
Indigenous Fijians settled the coastlines centuries ago and built knowledge about navigation and seamanship in these waters. Their skill in crossing this sea became central to connecting the island communities.
Fishing communities along the shores continue using traditional boats and methods that have been handed down through families for centuries. These practices shape daily life on the water and connect people to their maritime roots.
Coral reefs occupy much of the shallow water, so boat traffic follows designated routes between the islands rather than crisscrossing freely. Travelers should know that navigation outside these main channels requires local knowledge or experienced guides.
The seabed contains basaltic rock formations and hydrothermal vents that support unusual deep-sea life forms rarely seen elsewhere. These underwater features make the water column geologically active in ways most tropical seas are not.
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