Iconic Roca Partida sea stack in Mexican Pacific, Revillagigedo Islands

roca partida split rock sea stack islet revillagigedo islands natural protected area natural world heritage site mexican pacific colima mexico dive site mexican biosphere reserve aerial dive boats uninhabited island volcano erosion marine life indopacific gulf of california unesco marine ecosystem national park small island remote marine environment vertical walls diving archipelago open water ocean sea boats dive boat revillagigedo volcanic pacific unique ecosystem biosphere reserve galapagos of mexico marine reserve most beautiful dive site guano 50fps sky scenic seascape no people nobody