La Grotta dello Zaffiro

The first cave is sited in the islet of Isca, a private island once owned by the famous italian theatre writer and actor Eduardo de Filippo.After a series of arches, literally covered with Parazoanthus axinellae and Astroydes calycularis, we reach the entrance of the grotto, a vertical crevice only 7 m deep.
The rocky walls of the cave offer a unique scenario to the divers, with unbelievable tricks of light. Ascending, we surface in a large room, full of breathable air. Here it is possible to admire plenty of alabaster-like stalactites and stalagmites. Some of them are submerged, and are covered with the yellow Parazoanthus axinellae.The Sapphire cave is so called from the special color of the water inside. Surely it is the most attractive grotto in the sorrentine peninsula. The cave has a large main entrance only 3 m deep, and a second entrance, narrower, at 15 m. To pass the large main gallery is not a problem, being just 4 m long. The pool inside is a real subterranean lake, lit up of blue light from the sea, more than 40 m large, and the roof is more than 20 m high. A forest of stalactites hangs from the roof, and somewhere they join the stalagmites, forming alabaster columns.