Cova de Can Marçà is a stunning natural cave set in the cliffs of Ibiza's north coast, near Port de Sant Miquel bay. Ancient smugglers used it to hide their goods, hoisting cargo through a sea-level opening. The 35-minute guided tour covers 350 meters, featuring the Buddha Temple, Waterfall Hall with a dramatic light and sound show, and Lake of Wishes with fluorescent-colored water. A must-visit on rainy days or to escape the midday heat.