Reviewed · PRISON ISLAND TOURS
Zanzibar: prison island guided tour with local guide
Prison Island’s biggest surprise is its tortoise population. These Aldabra giant tortoises can weigh hundreds of pounds, and some are said to be more than 200 years old. I like the easy mix of wildlife and local history here, especially the chance to walk from the old prison ruins to a white beach in the same short visit.
I also like the short speedboat ride from Stone Town and the choice between a morning or afternoon departure. Guides such as Omar, Abdul, and Regalo have earned praise for their humor, clear explanations, and help on the water. The main drawback is that the advertised $35 price does not include the $22 entrance fee, and snorkeling gear costs extra.
Key points to know before you book

- Aldabra tortoises are the star attraction: See these huge, long-lived animals at close range while following the guide’s instructions.
- The island is close to Stone Town: The return speedboat ride makes this a practical half-day outing rather than a full-day commitment.
- The past is more complicated than the name suggests: Prison Island was linked first to slave detention and later to a British quarantine station, not a conventional prison.
- Morning timing can matter: One guide advises going early if you want to see the sandbank, which may be covered by afternoon.
- The beach time is flexible: You can choose to swim, snorkel, sunbathe, or simply enjoy views back toward Stone Town.
- The real cost is higher than $35: Add the $22 entrance fee, and possibly $3 for snorkeling gear or $50 for transport from another part of Zanzibar.
A quick boat ride from Stone Town

The tour begins at Stone Town Beach, near Forodhani Gardens. If you are staying in a Stone Town hotel, pickup is included. If you are staying elsewhere in Zanzibar, hotel transport costs an additional $50, so check the final price before booking.
For people without hotel pickup, the meeting point is Cape Town Fishmarket in Stone Town. From there, you walk to the departure point at the beach and board a speedboat for the trip to Changuu Island, better known as Prison Island.
The boat ride is part of the fun. The water around Zanzibar is clear and turquoise, and the island is only about 5.6 kilometers northwest of Stone Town. You receive a life jacket and water, but you should still bring sun protection. A hat, sunglasses, sunscreen, and a towel make the crossing and beach time much more comfortable.
The tour lasts about three hours. The morning schedule runs roughly from 9:00 a.m. to 12:30 p.m., while the afternoon trip runs from 1:30 p.m. to 5:00 p.m. That timing gives you enough space to see the main sights without making the island feel like a rushed photo stop.
Guide quality matters on a short tour. Omar has been praised for keeping the boat ride lively while explaining the island, and Abdul is particularly useful if you prefer French. Regalo is another guide noted for being helpful and friendly. The available languages include English, German, Italian, French, Russian, and Spanish, though you should confirm your preferred language when booking.
One practical warning: preparation can vary. On one outing, the boat and captain were not ready at the scheduled time, and snorkeling equipment took a while to arrive. I would allow some patience in your schedule, especially if you have a Stone Town meal or airport transfer planned immediately afterward.
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Meeting the Aldabra giant tortoises

The tortoise reserve is the emotional center of the visit. The Aldabra giant tortoises were brought from the Seychelles as a gift near the end of the 19th century. Some are more than two centuries old, which gives the encounter a sense of time that the island’s small size does not suggest.
You can see the tortoises up close, but this is not a petting zoo. Follow your guide’s directions and respect the animals’ space. Do not touch or disturb them unless specifically permitted. The best part is usually simply watching them move slowly through the reserve, with their large shells and wrinkled faces making them easy to photograph.
Bring a camera, but keep it secondary to paying attention. The island’s tortoises are not just a convenient attraction. They are a reminder that conservation often depends on giving visitors a controlled way to see wildlife without turning the encounter into a free-for-all.
A guide adds real value here. Omar has been singled out for making the visit entertaining while sharing plenty of information. Abdul is praised for explaining things clearly and allowing people time to wander at their own pace. That balance is useful because some people want a detailed explanation, while others mainly want quiet time with the animals.
The reserve can also be busy, particularly when several boats arrive close together. A guide who keeps the visit organized helps you see the tortoises without losing half your time waiting for other groups to move along.
What the prison buildings really mean

The name Prison Island can create the wrong picture. The island was not used as a normal prison for criminals. In the 1860s, it served as a detention center for rebellious slaves. In the 1890s, the British built a prison there, but the buildings were used as a quarantine station for people with yellow fever rather than as a long-term penal colony.
That distinction matters. The ruins are not a grand prison complex, and you should not expect a large museum with extensive displays. Instead, you see the remains of a colonial-era site and hear the local guide explain how its purpose changed over time.
I like this part of the tour because it adds needed context to what might otherwise be a simple beach outing. The tortoises are memorable, but the old buildings show how Zanzibar’s location in the Indian Ocean shaped its past. The island was close enough to Stone Town to serve practical purposes, yet separate enough to isolate people during disease outbreaks.
Allow your guide to set the pace. A good explanation makes the ruins easier to understand, especially since the buildings alone may not tell you much. You can then continue around the island, rather than spending the whole visit among the walls.
The historical section is brief, which suits the three-hour format. If you want a long, detailed examination of Zanzibar’s past, you should spend more time in Stone Town as well. Prison Island works better as a compact introduction to one small chapter of the region’s story.
Snorkeling, swimming, and white sand

After the tortoise reserve and historic buildings, you have time for the water and beach. The sea around Changuu Island is clear and supports colorful coral and tropical fish. Snorkeling is optional, so you can join in or stay on the sand.
Snorkeling gear is not included. You can bring your own equipment or rent it on the island for $3. The included package covers water, the speedboat, life jackets, the local guide, and optional snorkeling access, but not swimming equipment, food, or snorkeling gear.
This is an important distinction for families and anyone packing light. Bring your own mask and snorkel if you already have them, along with swimwear, a change of clothes, and a towel. You should also carry cash for the entrance fee and small extra costs.
The marine rules are simple and worth taking seriously. Do not touch coral or disturb marine life. The clear water can make the reef seem easy to handle, but coral is fragile, and careless contact damages it.
The beach is a good counterpoint to the historical visit. You can sunbathe, swim, or sit with a view of the Indian Ocean. The tour does not include food, so eat before departure or plan to manage without a meal during the three-hour outing. Water is included.
Timing may affect the beach experience. One guide recommends going in the morning because a nearby sandbank can be covered by afternoon. This does not make the afternoon tour a poor choice, but it does mean you should choose your departure time based on priorities. Pick the morning if the sandbank and beach conditions matter most. Pick the afternoon if you prefer a later start and do not mind possibly missing that feature.
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Stone Town views from the island

Prison Island gives you a different view of Stone Town. From the shore, you can look across the turquoise water toward the historic city, with the separation between island and mainland clear at a glance.
This view helps explain why the trip feels worthwhile even if you are not focused on snorkeling. You are not simply visiting an isolated beach. You are seeing Stone Town from offshore and connecting the city’s port setting with the small islands around it.
The return boat ride also gives the trip a pleasant rhythm. You leave the busy waterfront, spend time with tortoises and old buildings, then return to Stone Town Beach near Forodhani Gardens. Drop-off is at the beach, or at your hotel if that transfer has been arranged.
The ride can be lively when the guide brings energy to the group. Omar has been praised for making the journey feel like part of the event rather than a basic transfer. Still, speedboats are exposed to weather, so conditions can affect comfort and timing. In bad weather, the tour may be postponed for safety.
What the $35 price really covers

At first glance, $35 per person looks like a low-cost way to see a major Zanzibar attraction. It includes the return speedboat, life jacket, water, local guide, and optional snorkeling access. For a three-hour trip from Stone Town, that is a useful package.
The entrance fee adds $22 per person, making the known basic cost $57 before any hotel transport or equipment rental. If you are staying outside Stone Town, the extra $50 transport charge can change the value considerably. Snorkeling gear adds another $3 if you rent it on site.
The price makes the most sense for someone already based in Stone Town and able to reach the meeting point independently. In that situation, you pay for the boat, guide, and a compact visit to the island without committing to a full-day excursion.
The value also depends on how you use the time. If you only want a beach, there are other ways to spend a morning. If you want tortoises, island history, a boat ride, and possible snorkeling in one outing, the combined price is easier to justify.
Food is not included, so plan accordingly. Bring cash, swimwear, sun protection, and your own snorkeling gear if you have it. Oversize luggage, plastic bags, alcohol, drugs, weapons, and sharp objects are not allowed. Bare feet are also not permitted, so wear suitable shoes for the boat and island paths.
Who will enjoy this outing most

I would recommend Prison Island for people who want a short, varied excursion from Stone Town. The tour suits couples, families with older children, and anyone who likes to mix wildlife with beach time instead of spending a whole day at one resort.
It is also a good choice if you want a local guide rather than a self-guided boat transfer. Omar, Abdul, and Regalo are names associated with a friendly, personal approach, and the language choices make the trip accessible to a wide range of visitors.
You may want to choose another activity if you need extensive historical interpretation, guaranteed snorkeling conditions, or a fully private and tightly timed experience. The short itinerary leaves limited room for delays, and one reported departure had a slow start while the boat and gear were organized.
The tour is not suitable for pregnant women, people with mobility impairments, or people with heart problems. If you are unsure about the boat ride or water activities, check with the operator before paying.
The experience has a 4.8 rating from 14 reviews, with the strongest praise focused on the guides and tortoises. That matches the way I would judge this trip: the island is appealing, but the guide can make the difference between a quick sightseeing stop and a relaxed, informative morning.
Should you book Prison Island?
Book this tour if you want an easy half-day from Stone Town with three clear rewards: giant tortoises, a speedboat ride, and time on a white beach. Choose the morning departure if the sandbank is important to you, and bring your own snorkeling gear to avoid rental delays.
I would be more cautious if you are staying far from Stone Town, since the $50 transport charge can reduce the value. Also remember that the real starting price is $57 after the entrance fee, before transport, food, or equipment.
For most people staying in Stone Town, Prison Island is a sensible add-on to a Zanzibar itinerary. It gives you wildlife, colonial-era history, sea views, and time to swim without using a full day. Just arrive prepared for sun, possible schedule changes, and a tour whose quality depends partly on how well the local guide manages the details.
FAQ

How long is the Prison Island tour?
The tour lasts approximately three hours. The morning departure runs from about 9:00 a.m. to 12:30 p.m., and the afternoon departure runs from about 1:30 p.m. to 5:00 p.m.
Where does the tour depart from?
The departure point is Stone Town Beach near Forodhani Gardens. If you are not staying at a hotel, the meeting point is Cape Town Fishmarket in Stone Town.
Is hotel pickup included?
Pickup is included for hotel guests staying in Stone Town. Transport from other locations in Zanzibar costs an additional $50.
Are entrance fees included in the $35 price?
No. The entrance fee is $22 per person and is paid separately.
Are snorkeling equipment and swimming equipment included?
No. Snorkeling gear can be rented on site for $3, or you can bring your own. Swimming equipment is not included.
What can I see on Prison Island?
You can see Aldabra giant tortoises, visit the remains of the 19th-century prison and quarantine buildings, snorkel in the surrounding waters, relax on white sandy beaches, and view Stone Town from the island.
Can I swim or snorkel during the tour?
Yes. Swimming and snorkeling are optional. You should bring or rent suitable equipment and avoid touching coral or disturbing marine life.
What should I bring?
Bring sunglasses, a sun hat, sunscreen, swimwear, beachwear, a towel, a change of clothes, comfortable shoes, a camera, cash, and snorkeling gear if you have it. A passport or a copy is accepted.
Can the tour be canceled because of weather?
Yes. In bad weather, the tour may be postponed for safety reasons. You can cancel up to 24 hours in advance for a full refund.
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