Cape Verde figures on the top 10 list of ‘Hot spots’ or coral biodiversity, though no true coral reefs exist in the archipelago. Instead, there are a number of sites with rich coral communities. The Gatas Bay, on the NE shore of Boa Vista, combines optimal natural conditions for both coral development and safe snorkelling activity. “Gatas” refers to the local name of the nurse shark. Aggregations of this shark species occur in this area during the summer time. The coral community found in this bay is characterized by hermatypic hard coral species that support a particular diversity of marine life. Snorkeling tours are only possible at high tide, since at low tide, the bay becomes very shallow and the coral heads almost stick out of the sea surface. Free-diving equipment (wetsuit, shoes, lifejacket, mask and snorkel) is provided. We do not use fins in order not to damage the fragile corals.