The Bio Bay (Bioluminescent Bay) is a man-made bay which was dredged out nearly 30 years ago. The bay was created as part of a real estate project, and there are private villas on the shore of the bay. The physical features of the Bio Bay trap the dinoflagellate plankton, which is why there is such a high concentration of these plankton in the bay.
The visibility of the bioluminescence is always fluctuating. The factors that determine the visibility of the bioluminescence is the tide level and weather. There is a myth that boats and/or snorkeling are bad for the dinoflagellate plankton in the Bio Bay. However, there is no evidence to suggest this is the case, as there have been boats in the Bio Bay since its inception and all of the homes on the Bio Bay have docks and boats.
