Situated 200 meters from the access of the roman port of Pianosa, the anchorage point is close to a underwater rock at 5 meters of depth, the we will reach the wall falling down from a Posidonia area. The most interesting part is still the less deep because it offers the opportunity to swim constantly along with large Groupers, Snappers, lots of Barracudas and often large Amberjacks whizzing around us. The trip ends on a suggestive cave where the light creates the effect of a submerged cathedral.