This full day tour goes from etna the highest active volcano in europe to the characteristic volcanic seabeds of aci castello in the afternoon in the first part of the excursion submerge in nature and visit old craters and lava flow caves enjoy breathtaking views and taste typical local product in the early afternoon you will go snorkeling in the marine protected area of isole dei ciclopi where you will admire the first submarine eruption of the ancient etna and the typical flora and f