Deep sea has an intense blue color. The light that penetrates the water changes its light intensity and its spectral composition by effect of  selective absorption by water of the different wavelengths that make up the visible spectrum. The ultraviolet and infrared stop the first few centimeters of depth, then extinguished the red, orange, yellow, green and purple and blue that reaches greater depths. ...

Finding a starfish is one of the first experiences a diver can have, especially the Red starfish - Echinaster sepositus - one of the many species among the most common in the Mediterranean Sea. It is one of the first encounters, but even the most experienced divers always find this species of echinoderm fascinating. However, when they meet, some precautions must be taken to avoid causing damage to these splendid starfish. Surely picking them up with some care, handling them and forcibly removing them from the substrate on which they are located can lead to damage ...

Missing Island is a shoal halfway between the Island of Gorgona and Livorno. The shoal has two summits a couple of miles apart which rise to a depth of about 36 and 46 meters, from a depth of 80 meters on the side of Livorno and over 120 meters on the side of the Island of Gorgona ...

In this dive on a depth that varies from 40 to 45 meters I encountered different species of marine organisms typical of the coral beds of the Mediterranean Sea. ...

This can be seen very well underwater, and it is precisely here that we found the False Coral, Myriapora Truncata. Already in a few meters of depth we can find craters, cracks, gullies and ravines that demonstrate well the volcanic origin of the island. ...