33. Cave Quest: Explore the Wonders of Cova de Can Marca! Carrer de la Cova, s/n, 07819 Sant Joan de Labritja See route Down, down, down into Ibiza’s famous cave! Guided tours reveal rainbow-lit rock formations, old smugglers’ routes, and secret pools. Kids will love imagining pirates and playing “who can spot the stalactite animal first!” Cost: €8 adults; €5 children; under 5 free. See website +34 971 34 00 21