潜点: Blue Hole - Sigua

关于 Blue Hole - Sigua

The Blue Hole - Sigua is a remarkable dive site found near Cay Sigua, positioned precisely at the western end of a prominent reef crest. Its entrance, situated at a shallow 4 meters, is an opening measuring approximately 6 meters long by 3 meters wide, leading to a dramatic vertical descent. The walls of this blue hole plunge to an impressive depth of 83 meters, with one side almost sheer and the other featuring an overhang, causing the cavity to widen as divers go deeper. This unique geological formation is notable for the abundant marine life at its entrance, including lobsters, nudibranchs, yellow-headed snappers, and flamingo tongues. The topography around Cayo Sigua also features a sandy area at 12 meters that slopes into a wall with purple tunicates and round anemones. Just before the blue hole, the reef forms a large natural horseshoe, providing a well-known anchorage. The Blue Hole itself is located at the northwestern tip of the second ridge within this horseshoe, accessible by boat. While the sources do not specify seasonality for marine life encounters at this particular site, the region in general, especially the dry season from November to May, offers excellent visibility. The area hosts a diverse array of species due to its protected status and limited human activity. The blue hole’s entrance provides a rich habitat for smaller creatures. This site demands careful diving due to the risks associated with its depth and structure. Bubbles released by divers can stir up sediments, potentially reducing visibility within the cavity. Night dives are recommended for exploring the numerous organisms outside the cavity, leveraging the protection offered by the coral barrier, rather than entering the deep hole after dark. Its significant depth means it is typically considered an advanced dive, often part of liveaboard itineraries.