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Neptune’s Caves Boat Tour

4/5
56 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.

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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

4/5

All reviews are verified

Based on 56 reviews


Review categories

Safety

5/5

Staff

5/5

Service

3.4/5

Value for money

3.4/5


45%
29%
20%
2%
5%

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  • R

    Ruth

    Travelled as a couple


    19 August 2026
    4.6

    Germany

    Die Grotten sind ein Besuch wert und wirklich beeindruckend. Leider im August extrem überlaufen, so dass es sehr voll ist. Dafür ist es aber durch die Mitarbeiter in der Höhle perfekt organisiert und funktioniert reibungslos. Die Bootsfahrt selbst ist ebenfalls sehr schön. Sie führt an den Felsen vorbei und bietet tolle Blicke. Verbessert werden sollte, dass einem klar ist wie die Rückfahrt funktioniert. Das klappt nämlich perfekt - wird aber nirgends erwähnt. Führung ist nur in Engl. und Ital.

  • C

    Carina

    Travelled with family


    14 August 2026
    4.6

    Sweden

    Tui-tjejen var mycket hjälpsam vid bokning av båtturen. Lite krångligt att köpa biljetter till själva grottan. Personalen på båten var vänlig, särskilt mot barnen!

  • S

    Sandra

    Travelled with family


    2 July 2026
    5

    Norway

    TUI hade kunnat vara tydliga med att upplevelsen man bokade enbart var båtturen ut till grottan, och att det tillkommer kostnader för ingångsbiljetter om man vill gå in i grottan.

  • T

    Tracey

    Travelled as a couple


    24 July 2026
    4.6

    United Kingdom

    The crew of the boat were great and the caves are beautiful. We were unlucky with our guide within the caves-he came across quite rude at times.

  • J

    Jansson

    Travelled with family


    15 July 2025
    5

    Sweden

    Det var lite svårt att höra vad guiden i grottan sa. Hon pratade fort och det blir eko eftersom det är en grotta. Annars har jag bara lovord att ge.

  • H

    Helena

    Travelled as a couple


    27 August 2025
    5

    Sweden

    Otrolig vandring i grottorna , rekommenderas