Sun, sea, snow, fire: the four elements are found in abundance in this geologically fascinating region. Get close to the island’s natural resources by diving and snorkelling in the crystal clear waters around Taormina and the Aeolian, where shallow coves teem with fish; walk along craters and wind your way through the lava of Mount Etna, whose snow-capped summit can be seen from all over Sicily; or admire the salt marshes between Marsala and Trapani, where the salt is still extracted using an age-old process.