The meeting will take place at Cala Sidoti, inside the "A" zone of the first Marine Protected Area in Italy. The area is easy to access and is characterised by a similar beach made up of small pearly grey basalt grains that do not stick to the costume. Equipped with a mask and snorkel we will enter its very shallow waters where you can touch the surface and it is not necessary to dive deep; we will therefore observe the very rich fauna and flora at the surface of the water where we will discover the dens of the Groupers, expanses of posidonia where the salemas sneak in, shallow waters full of sea urchins and many other species. We will also discover different social behaviours and clever survival strategies, and we will understand that fish are much more intelligent than they say :). For those who do not have masks, you can rent them for €2.50 each.