This dive site, Bajo Negro, also known as Black Rock, is a surprising dive location situated within the National Park of Santa Rosa, forming part of the renowned Bat Island (Islas Murcielagos) in Costa Rica. Located approximately 45 kilometers from Potrero, it serves as an exciting finale dive after exploring sites like Big Scare. The topography consists primarily of a prominent rock formation, acting as a magnet for pelagic life. Navigation often involves exploring around this rock, keeping an eye out for sudden appearances of large marine animals, which makes each dive a unique experience.
Black Rock is famed for its unpredictable but often spectacular pelagic encounters. Divers frequently witness sailfish and large schools of barracuda. While the description highlights big stuff, the rocky environment likely supports various reef fish, although specific smaller marine life or coral types are not detailed. It's a site where divers primarily look for large, fast-moving ocean inhabitants that emerge unexpectedly from the blue.
The best time to visit Black Rock for the most thrilling encounters is not specified, but pelagic activity in Costa Rica's Pacific often peaks during specific seasons related to upwellings and migration patterns. Divers should be prepared for variable conditions, including potentially strong currents, making it more suitable for intermediate to advanced divers comfortable with drift diving. Freedivers will also find the 21-meter maximum depth and the chance of seeing large pelagics highly appealing, provided they are adept at managing currents and open water encounters.
