Blue Grotto Capri Tours

The Blue Grotto (Grotta Azzurra) is a sea cave on Capri whose water glows an intense blue. Sunlight enters through a large opening below the surface; the water absorbs the red light and lets blue through, so the whole cave fills with azure light and silvery reflections.

Plan for about 18 to 19 euros per person, paid in cash at the floating ticket office by the cave. That combines a cave-entrance ticket and the rowboat transport. The exact amount is set locally and can change, so treat it as a guide and carry cash.

Most visitors arrive on a boat tour that sails from Sorrento, Naples, Positano or Capri's Marina Grande and stops at the cave as part of an island cruise. You can also take a ferry to Capri and reach the grotto by local boat or by land from Anacapri.

Yes, often. The entrance is barely a metre high above the water, so rough seas, high winds or high tide make it impassable and it closes with little notice. It is also largely closed in winter and always closed on 25 December and 1 January.

You can visit independently by reaching Anacapri and going down to the cave by land, or by taking a local boat from Marina Grande. Many people find a guided boat tour simpler because it handles the timing, the cruise and often the tickets.

Late morning to early afternoon on a sunny day, when the sun is high and the underwater light is strongest. Earlier arrivals also face shorter boat queues.

Late spring through early autumn offers the calmest seas and the most reliable opening. July and August are busiest, with the longest queues; May, June and September balance good weather with smaller crowds.

In quiet periods you may wait under an hour on the water. At the height of summer the boat queue to enter can reach up to two hours, so start early.

Wear light clothing you can move in, bring a hat and sun protection for the open boat, and carry cash for entry and a tip. Secure phones and cameras, as the rowboat is cramped and moves.

A small tip is customary for the boatman who rows you in and often sings inside the cave. Keep a little cash aside for it alongside the entry fee.

Yes, plan to pay in cash at the floating ticket office. Card payment is not reliable at the cave, so bring enough euros for the entry and a tip.

If the sea is too rough, the rowboats do not run and you cannot enter. Boat tours usually continue around the island's coast and other sights, so the day is not wasted, but the cave visit itself may not happen.

Refund rules depend on the operator and on whether grotto entry was a separate add-on. Check the cancellation and closure terms on your tour listing before you pay, so you know where you stand if the sea closes the cave.

A boat tour adds a scenic island cruise and usually smoother logistics, while a land visit from Anacapri can be cheaper and lets you go at your own pace. Sea conditions decide entry either way.

In peak summer, popular boat tours sell out days ahead, so book several days in advance for July and August. In shoulder season a day or two is usually enough, though calm-weather days fill quickly.