A 20-minute boat trip from the Stone Town seafront.
The Aldabra giant tortoises of Changuu, some more than a century old.
Snorkelling on a small reef, with a beach stop and refreshments.
Overview
Prison Island was built in the 1800s and never used as a prison, but it has become one of the best-loved short trips from Stone Town. The tortoises are gentle and used to visitors, and the shallows around the island are clear enough for a first snorkel.
Combine it with a Stone Town walk or a sunset cruise for a full Zanzibar day. See Prison Island for more.
Tour facts
Difficulty
Easy
Group sizes
Private, Joining safari
Great for
All ages
Languages
English, Swahili
Start point
Stone Town
Guest rating
4.8 / 5
Best months to travel
JanFebMarAprMayJunJulAugSepOctNovDec
Day-by-day itinerary
Day1Tortoises and snorkelling at ChanguuPrison Island (Changuu)
We meet at the Stone Town waterfront and cross by boat. On the island you visit the tortoise sanctuary and the old quarantine buildings, then snorkel on the reef.
We return to the seafront around noon, or you can stay for a beach lunch on the sandbank if the tide allows.
Photos from the trip
What’s included
Hotel pick-up and drop-off in Stone Town, Nungwi, Paje or the east coast (ask us for other areas)
Local guide and all entrance or boat fees for the trip
Snorkel gear, life vests and drinking water where the trip needs them
Fruit, refreshments or lunch as described in the day plan
Not included
Drinks and meals not described in the day plan
Tips for guides and boat crews (optional, but appreciated)
Personal insurance and any personal purchases
Photography or drone permits where required
Prices by season
Per person in USD, 2026 rates, based on 2 travellers sharing.
Year-round rate
1 Jan – 31 Dec
$55
Travelling in a group? You save
Per-person price for the Year-round rate rate.
1 traveller
$84
--52%
2 travellers
$55
-0%
3 travellers
$53
-3%
4 travellers
$52
-5%
5 travellers
$51
-7%
6 travellers
$50
-9%
7 travellers
$50
-10%
8 travellers
$49
-11%
Frequently asked questions
What time do we start and finish?
We usually collect from your hotel between 7 and 8 a.m. and are back by late afternoon. We confirm the exact times when you book.
What should I bring?
Comfortable walking shoes, sun protection, a hat, a light rain jacket and a little cash for tips or souvenirs. We send a short checklist when you book.
Can we change the day or the plan?
Yes. Day trips are private by default, so we can shift the timing or swap stops to suit you. Just tell us early.
