The Blue Grotto from Positano: how it works, and why nobody can promise it

Entry is €18, paid on site in cash unless your tour has already included it, and you go in from a rowing boat that takes four people at a time through an opening barely bigger than the boat. It closes whenever the swell is up, which no operator controls and none can guarantee around. In high season the queue of boats at the cave mouth can run past an hour, all of it spent bobbing about waiting your turn, and then the visit itself is a matter of minutes. Whether that is a good trade is a real argument with two sides, and I have put both of them below rather than pick for you.

EntrancePaid in cash, on site

You enterBy rowing boat, four at a time

Closed whenThe swell is up

Peak queueCan run past an hour

GuaranteedBy nobody, ever

Sometimes includedIn the fare, on one listing

The mechanics, start to finish

Your boat does not go into the cave. It stops outside, alongside a cluster of other boats and a small fleet of rowing boats working the entrance. You transfer into one of the rowing boats, four passengers at a time, and the oarsman waits for the swell to drop, pulls on a chain fixed to the rock and lies you all flat as the boat slips under an opening with very little clearance. Inside, the light comes up through the water from below, the oarsman rows a slow circle, and you are back out again shortly afterwards. The entrance fee is collected on the water and cash is the way it works.

Why it closes, and why that is not a swindle

The opening is low. A modest swell is enough to make the clearance unsafe and the whole thing shuts, sometimes at an hour’s notice, sometimes for days. Every skipper on this coast checks the wind before saying a word about the grotto, and the good ones tell you in the morning that it is a maybe. When a tour describes the Blue Grotto as optional or weather-dependent, that is not small print protecting the operator, it is the actual condition of the place. Book the day for the rest of what it does, and treat the cave as a bonus that may or may not land. The same logic applies to the whole itinerary, which flexes with the sea — see which months give you the best odds.

Is it worth it? Both cases, honestly

For. There is nothing else like the light in there, it is genuinely a few minutes you remember, and if you are already circling Capri the detour costs you time rather than a separate trip. People who go in are, on the whole, glad they did. Against. You may spend well over an hour queueing on the water for a visit measured in minutes, the transfer and the fee are separate from the tour you already paid for, and on a busy day the cave holds boats being rowed in circles rather than a hush. If your party includes someone who does not enjoy sitting in a small boat going nowhere, the maths gets worse.

What works

Light in the water that nothing else on this coast reproduces
A short detour if you are circling the island anyway
One listing on this site includes the entrance and the landing tax in the fare, so nothing is collected from you on the day
Skippers know by mid-morning whether it is on, and will tell you straight

Worth knowing

The entrance is collected separately, in cash, on most tours
Queues at the cave mouth can run past an hour in high season
The visit inside is minutes long, whatever the wait was
Closed whenever the swell is up, with no notice and no refund of your time
Four to a rowing boat means your party may be split across two of them

Insider tip

If the grotto is the whole reason you are going, buy the day that already includes the entrance rather than the cheapest one. Not for the money, but because it puts the decision on the operator rather than on you at the cave mouth with a wallet out.

The tour with the entrance already in it

The Capri and Blue Grotto shared boat tour is the one listing here where the grotto entrance and the Capri landing tax of about €10 are already inside the fare, which is why it sits at $238 against cheaper Capri days that leave both to be settled on the water. It rates 4.8 across 245 reviews and runs eight hours with a swim stop and free time ashore. It is not suitable for wheelchair users. It still cannot promise you the cave, because nothing can. Read the full write-up on the Blue Grotto tour review, or compare it against the others on Capri boat tours.

The best proof that honesty survives contact with the weather is a five-star review that begins “Weather didn’t cooperate but we can’t control that”. Peggy did not get her grotto and still praised the day. Book the cave as a possibility and the boat as the certainty, and you will come home the way she did.

Check dates for the grotto-inclusive tour

Free cancellation up to 24 hours before departure on most tours — book now, decide later.

Frequently asked questions

How much does the Blue Grotto cost?

The entrance is the figure in the answer box above, collected on site and in cash, unless your tour has included it in the fare. One listing on this site does exactly that — see the Capri tours compared.

Can you visit the Blue Grotto from Positano?

Yes, as part of a Capri boat day rather than as a trip of its own. Your boat stops outside and you transfer to a rowing boat, four at a time. How the wider day fits together is on Capri in a day.

Is the Blue Grotto ever closed?

Frequently. A modest swell makes the low entrance unsafe and it shuts, sometimes for days. No operator can guarantee entry, and any that implies otherwise is overselling. Which months carry the best odds is on the best time to go.

Is the Blue Grotto worth the queue?

For some people plainly yes, for others plainly not. The wait at the cave mouth can pass an hour in season and the visit inside lasts minutes. The wider version of that question is on is a boat tour worth it.