The place
Sea cave with particularly clear, transparent water, whose colour and visibility recall a natural aquarium; it is part of the evocative group of coastal caves of the Circeo that can be visited by boat or canoe, appreciated for the crystal-clear waters protected within the National Park.
Past the so-called Lighthouse Cave, completely emptied by the sea, is the Aquarium Cave. It lies just above sea level and contains, beneath a stalagmitic layer, many remains of fossil fauna, charcoal and stone tools. The vault shows holes bored by date mussels.