Navigating Bermuda and Cumberland Island: Intrigue, Flux, and Current : www.mfairlady.com/navigating-bermuda-and-cumberland-island/
Bermuda's upper layer was built by corals that thrive in the clear, warm waters pulled up by the Gulf Stream. The Gulf Stream that runs through the BermudaTriangle is swift and turbulant. It flows at 4 to 5 knots along the shelf break until it deflects out over the open ocean off Cape Hatteras. A constant succession of massive eddies and upwellings peel off the Gulf Stream's western wall, carrying life from the tropics to the temperate sounds of North Carolina.
The ocean floor has shoals around islands as well as some of the deepest marine trenches in the world. Uncharted navigational hazards abound as strong currents interact with reefs creating a constant flux.
Earlier this year I went on a kayak expedition around Georgia's Cumberland Island and kayak surfing was one of my favorite memories from the trip. People who like to surf, including kayak surfing, will look for the shoals where waves break.