Surrounded by steep walls accessible only through a small canyon is the Inland Sea a little world on its own. In summer a pretty busy place cause not only divers love the 80-meter long tunnel leading in to the open sea. Lot´s of tourists starting a boa trip through the tunnel and out to the "Azzure Window" from there. The dive starts in the entrance to the tunnel. Even the whole tunnel is light zone, a light is pretty helpful diving through the deep blue tunnel. The highlight on this dive is simple the color of the water and the play of light entering and leaving the twilight.