Serrana Bank, Island group in Caribbean Sea, Colombia
Serrana Bank is an island group made up of six cays in the Caribbean Sea off Colombia, spread across a substantial area and forming an extensive coral reef system. The formation sits in shallow waters and is used mainly for diving and fishing activities today.
Dutch cartographers first documented this maritime formation in 1545, while English mapmakers conducted additional surveys in the 17th century to aid navigation. Over time, the area came under Colombian administration.
Fishing communities in the region have relied on these waters for generations, passing down their knowledge of the sea and its resources through traditional practices. The island group forms part of the Seaflower Biosphere Reserve, which protects the marine environment and supports local livelihoods today.
This location sits on open water and is only accessible by boat, best visited during the dry season when conditions are more stable. Visitors should prepare for strong sea currents and consult local boat captains for trip planning.
Southwest Cay stands out as the largest island in the group, rising notably from the shallow waters and surrounded by five smaller formations. Together these six islands create an important habitat for specialized marine species.
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