Opening Times and Booking

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Opening timetable

Neptune's Grotto is open every day in favourable marine weather conditions and with the exception of 24 and 25 December.

Every full hour begins a guided tour lasting approx. 30 min

In order to ensure a safe visit, we ask you to be punctual.

 From Saturday, 1st April

9AM to 7PM (last entrancy)

9AM to 7PM (last entrancy)

9AM to 7PM (last entrancy)

9AM to 7PM (last entrancy)



9AM to 7PM (last entrancy)

9AM to 7PM (last entrancy)

9AM to 7PM (last entrancy)


Reservations are required from website Alghero Experience 
We inform you that the reservation does not include the purchase of the entrance ticket to the Neptune's Cave.
Buy Alghero Ticket to visit the city’s monuments and museums, Neptune’s Cave and the Regional Natural Park of Porto Conte.

Buy your ticket online or at the Neptune’s Cave ticket office at Capo Caccia, in the square in front of the steps, if you wish to visit only the Grotto.


It is necessary to arrive at the square in front of the overland entrance to Neptune's Cave at Capo Caccia no later than 40 minutes before the start of the tour in order to accommodate the time necessary to descend the steps and for check-in.

Should you fail to arrive at the requested time your booking will be cancelled.

If, on the other hand, you wish to access the Cave by sea, please note that booking is not required Here more info 
Passengers on scheduled boats are automatically reserved a place to visit the Grotto. The cost of the ticket for the boat trip does not include admission to the Grotto of Neptune.

If you are a tour operator, a travel agent, part of a group of more than 25 people or a school group, contact us at to book the visit and to find out the advantages and offers available to you!

We would like to remind you that for safety reasons, in the event of adverse weather and sea conditions, the Cave may be closed

In the event of bad weather or particularly windy conditions, we advise you to check that the site is open before your arrival, either by land or sea, by calling the Cave on +39 345 7418361, the tourist information office on +39 079 979054 (key sequence 1-1-1) or by following the updates available on the Cave’s official Facebook and Instagram pages

Whenever feasible, depending on operating times of the ticket office, we will contact you via the email provided when signing up to inform you of any forced closure and invite you to proceed with a new booking.