Enjoy 10% off our TUI Collection experiences. Simply access or create your myTUI account to get the code. Click here Valid until 28.02.2026
Menu
Cart

Neptune’s Caves Boat Tour

4.2/5
10 reviews

It may be named after the Roman god of the sea – but Neptune's Grotto was discovered only a couple of hundred years ago. Hidden just above the water level at the base of the towering and remote Capo Caccia cliffs, the grotto is one of Sardinia's most dramatic natural attractions.

After sailing from the harbour, you'll pass rugged coastline before reaching the grotto in under an hour. On arrival, you can choose whether to go in to Neptune's Grotto or not. If you do, you'll see stalactites biting down like incisors from the roof of the cave and stalagmites stabbing up from the floor like daggers, and a saltwater lake that stretches out for 120 metres – all while having the geology expertly brought to life by your local guide.

If you choose not to take the subterranean tour, you can stay on board basking in the sunshine. Either option is a great way to spend some time before a leisurely trip back to port.

Main features

Free cancellation
Place: Alghero
Duration: from 2 hours to 4 hours
Language:English
Mobile voucher accepted

Additional features

Instant confirmation
e-Voucher

Why you’ll love this…

  • Neptune's Grotto boat trip
  • See Capo Caccia cliffs
  • Optional subterranean tour inside the grotto

Important to know

  • Meeting point is by Antonio's boat, 30 minutes before each sailing – boats depart at 10:45, 11:45, 13:45 or 14:45
  • Motorboats Freccia and Attilio Regolo offer daily connections and depart from Garibaldi dock in the port of Alghero
  • Tour inside cave not suitable for guests with reduced mobility
  • Admissions not included
  • Transfers not included
  • Food and drinks not included
  • Some entrance fees and optional extras are payable locally

Cancellation policy

Receive a 100% refund if you cancel up to 2 days before the experience begins.


What’s included

  • Boat trip

Booking fee

Good news! No extra fees are applied to this booking.


Pickup points

To see which pickup points are available, check under availability & prices.

Provider

TUI ITALIA S.R.L.


What people say about this experience

4.2/5

All reviews are verified

Based on 10 reviews


Review categories

Staff

4/5

Value for money

4/5

Safety

4/5

Service

4/5


40%
40%
20%
0%
0%

Sort by:

  • T

    TUI Musement Traveler

    September 7, 2025
    4

    United States of America

    Great boat tour operator, really nice friendly and efficient staff, perfect boat for the job. The grotto is a surprise. It is spectacular. Way way too many in there at the same time and no apparent capacity limit.

  • T

    TUI Musement Traveler

    August 9, 2025
    3

    United States of America

    Very difficult to find the boat, because there was nothing signed as Antonio's Boats. The trip itself was lovely, other than the boat being so overcrowded that it was impossible to sit down.

  • T

    TUI Musement Traveler

    July 11, 2025
    4

    United States of America

    Overall a fantastic trip, the only downsides were that the tour of the caves felt rushed, and on the return journey we couldn't get a seat on the boat (im sure there were enough seats but other people spread themselves out and refused to move up) so we had to stand for the whole journey

  • T

    TUI Musement Traveler

    July 20, 2025
    5

    United States of America

    Bateau très bien entretenu. Pratique pour aller aux grottes et revenir. La visite des grottes (payante en plus) nous a moins plu mais rien à voir avec le transport en bateau.

  • T

    TUI Musement Traveler

    September 19, 2025
    4

    United States of America

  • T

    TUI Musement Traveler

    June 26, 2025
    5

    United States of America

Need a hand?

Would you like some help making a booking? Or perhaps you just want to ask a few questions. Whatever the reason, don't hesitate to get in touch.

Opening hours: Our team is available from 10.00 to 18.00 CET

Phone number: +1 208-744-6464