The Blue Grotto
Capri's most famous wonder — the Blue Grotto (Grotta Azzurra), a sea cave on the island's north coast where sunlight, refracted through an underwater opening, fills the water with an astonishing, glowing electric-blue light while objects below the surface shimmer silver. You transfer into a tiny wooden rowing boat and lie flat to slip through the low entrance, then drift in the eerie blue glow as the boatman sings. It's touristy, brief and weather-dependent (it closes in rough seas or high tide), but the colour is genuinely magical and unlike anything else. Go on a calm morning. Unforgettable and iconic. Check conditions before you set out.













