Prison Island Half-Day Tour from Zanzibar

The giant Aldabra tortoises are the clear reason to visit Prison Island, also called Changuu Island. Some are more than 150 years old, and seeing these massive, slow-moving animals up close gives this short boat trip a memorable center.

I like the easy escape from Stone Town and the chance to pair the tortoise sanctuary with clear water and a beach break. I also like that hotel pickup, a private boat, a guide, and entrance fees are included. The main caution is practical: you may need to walk through about a foot of water to reach the boat, and the sea can be rough.

I would arrive as early as possible if you can choose a morning departure. The island can become crowded later in the day, and the heat is strong, so bring water, a swimsuit, a towel, and clothing that can get wet.

Key points to know before you book

• The tortoises are the main event: See Aldabra giant tortoises originally brought from the Seychelles, including animals reported to be more than 150 years old.
• The island is close to Stone Town: The boat trip takes about 30 minutes, making this a practical half-day outing.
• You get 2 to 3 hours on Changuu: Use the time for the tortoise sanctuary, the old buildings, swimming, snorkeling, and beach time.
• The boat landing can be wet: Be ready to walk through shallow water, and wear shorts or trousers that can be rolled up.
• The history is worth your attention: The island was linked to the holding of enslaved people and later used as a yellow fever quarantine center.
• The $95 price includes useful basics: Hotel transfers, a guide, the private boat, and entrance fees help make the price reasonable, though food, drinks, and tortoise feeding cost extra.

A quick boat ride from Zanzibar

The tour begins with pickup from your Zanzibar hotel and transport to the boat. The listed meeting point is Kisauni Airport, Tanzania, so confirm the exact pickup place and time when you book, especially if you are staying outside the main Stone Town area.

From the coast, the ride to Changuu takes about 30 minutes. The crossing is part of the experience, not just a transfer. On calm days, it is an enjoyable look at the water around Zanzibar. On rough days, the small covered wooden boat can pitch and spray, so keep your belongings protected and expect a lively ride.

The boat may not pull directly onto a dry beach. You may have to step into water around a foot deep to reach shore. I would wear sandals or water-friendly shoes and choose shorts, swimwear, or trousers that roll above the knee. This is one of those small details that can make the difference between a relaxed start and a soggy surprise.

The tour is described as a private activity, so only your own group participates. That gives you more control over the pace than a large shared excursion. It also means you can ask your guide to allow extra time for snorkeling or the tortoises, although the exact pace depends on conditions and the day’s arrangements.

Meeting the giant tortoises

The tortoise sanctuary is the strongest part of the visit. These are Aldabra giant tortoises, originally brought from the Seychelles. They are large, powerful animals with thick legs, patterned shells, and a calm but surprisingly forceful presence.

You can walk among them and watch them graze, rest, and move about at their own slow pace. Some are said to be over 150 years old, with the oldest reported in the supplied information reaching 192. That age gives the visit a sense of time that you will not get from a quick wildlife display.

You can also pay extra to feed the tortoises. If you do, listen carefully to instructions and keep your fingers clear. Their beaks are not aggressive, but they are strong, and the tour information specifically warns you to watch out for them.

I would treat the sanctuary as more than a photo stop. Take a few minutes to notice the animals’ size and age instead of rushing from one tortoise to the next. The setting is simple, and the appeal comes from being close to living creatures that may have been here for many decades.

The sanctuary is also the part most likely to satisfy children and anyone with a strong interest in animals. It is easy to understand, visually impressive, and close to the walking paths. If the tortoises are your priority, ask your guide to give them proper time before moving on.

The island’s difficult past

Changuu is not only a beach and wildlife stop. Its buildings and museum connect the island to a difficult past. It was used as a holding place for enslaved people and later became a yellow fever quarantine station.

The history can be interesting, but the quality of the explanation may depend heavily on your guide. One particularly poor experience described a trainee guide who could barely explain the prison section in English. Other accounts describe friendly guides with good English who gave useful background and kept the visit moving at a comfortable pace.

That unevenness matters. The old buildings are not enough on their own to explain what happened here. If the historical explanation feels thin, ask direct questions about the holding facilities, the quarantine role, and which buildings were actually used. The restaurant courtyard, for example, was never used as a prison, despite its name and appearance.

You may also find a shop with a wide range of souvenirs. One account considered it unusually good, while the general value will depend on what you want to buy. You do not need to shop to enjoy the island, but it can be a convenient place to find a small reminder of Zanzibar.

Swimming, snorkeling, and beach time

After the tortoises and historical sites, you have time to use the island as a beach escape. The water is described as clean and clear, and swimming from the beach is one of the tour’s simple pleasures.

Snorkeling is optional. Equipment may be available, but the additional information advises you to bring your own gear, so I would not assume that a well-fitting mask and snorkel are guaranteed. If snorkeling is important to you, pack your own equipment or confirm the arrangement before departure.

Keep your expectations measured. The water can be attractive and pleasant, but the snorkeling is not necessarily the main reason to book this excursion. One account found the tortoises far more impressive than the underwater portion. Think of snorkeling as an extra activity that rounds out the trip, not as a full marine expedition.

The beach gives you a chance to slow down after the boat ride and walking. Bring a swimsuit and towel, as requested, and carry enough drinking water. The heat can be intense, and food and drinks are not included. A restaurant is available at your own expense, so you have an option to buy something, but you should not count on the tour price covering lunch or refreshments.

How the three-hour schedule feels

The total duration is about three hours, with roughly 2 to 3 hours on the island. That is enough for a tidy introduction to Changuu, but it is not a full-day beach outing.

A typical rhythm is:

• Hotel pickup and transfer to the boat
• About 30 minutes on the water
• Tortoise sanctuary visit
• Historical sites and museum area
• Optional swimming and snorkeling
• Possible restaurant or souvenir stop
• Boat ride back and hotel drop-off

The advantage of this short format is convenience. You can see one of Zanzibar’s best-known nearby islands without giving up an entire day. It also fits well around time in Stone Town, where you might visit sites connected with Freddie Mercury, shop, or simply walk the old streets.

The drawback is that the schedule can feel compressed if you want a long beach session, a careful historical visit, and extended snorkeling. Boat conditions, crowd levels, and the guide’s pace all affect how much free time you really have.

Morning and afternoon departures are offered. I favor the earliest practical option because the island can get more crowded as the day goes on. Early timing may also make the heat easier to manage, although the weather remains outside your control.

Guide quality and the value of a private tour

The guide can make a big difference here. The best version of this trip includes a friendly guide who explains the island, answers questions, and adjusts the pace when your group wants more time to snorkel or look around.

The guide quality is not guaranteed to be uniform. The available feedback includes both strong praise for friendly, informative guidance and a serious complaint about weak English and shallow explanations. If the historical side matters to you, ask at the start for a proper explanation rather than waiting for information to appear on its own.

The private format helps. You are not tied to a large group’s pace, and your guide may be able to go the extra mile when you want to snorkel. The activity may be operated by a multilingual guide, so it is sensible to confirm the language you need at booking.

At $95 per person, the tour is not the cheapest way to reach a nearby island. Still, the price includes hotel pickup and drop-off, a professional guide, the boat transfer, and entrance fees. Those inclusions reduce the number of arrangements you must make yourself.

The value is strongest if you want an organized half-day with transport handled for you. It is less compelling if you only want a beach and can arrange a simple boat ride independently, or if you expect high-level snorkeling and a long island stay.

Practical details that affect your day

You need a moderate level of physical fitness. The tour involves hotel transfers, boat boarding, walking around the island, and possibly stepping through shallow water. It is not described as a demanding hike, but it is not a fully hands-off sightseeing ride either.

Bring:

• Swimsuit and towel
• Water-friendly shoes or sandals
• Water and sun protection
• Clothing that can be rolled above the knee
• Your own snorkeling gear if snorkeling matters to you
• A secure bag for phones and other items during the wet boat landing

Food, drinks, and souvenir photographs are not included. Tortoise feeding also costs extra. A restaurant is available, but you pay there yourself.

The weather matters. The tour requires good conditions, and bad weather can lead to a different date or a full refund. For a normal cancellation, you must cancel at least three full days before the local start time to receive a full refund. Changes or cancellations inside that three-day window are not accepted for a refund.

Who will enjoy Prison Island most

I would recommend this trip to someone staying in Stone Town who wants a short change of scene, likes animals, and wants a manageable blend of nature, history, and beach time. It is especially suitable for families, couples, and first-time visitors who prefer hotel transfers and a guide.

It also suits anyone who wants to see giant tortoises without planning a longer wildlife trip. The animals are close, memorable, and easy to appreciate even if you are not an expert in wildlife.

You may want a different outing if your main goal is serious snorkeling, a quiet empty beach, or a detailed historical tour. The island can become crowded, the underwater experience may feel ordinary, and guide quality can vary.

Should you book this tour?

Book it if you want the giant tortoises, an easy boat trip from Stone Town, and a well-organized half-day with hotel transport included. The combination is convenient, and the tortoise sanctuary gives the outing a clear reason to exist beyond simply sitting on a beach.

Before booking, confirm the pickup details, the guide language, and the snorkeling equipment. Choose a morning departure if possible, bring plenty of water, and be ready to get your feet wet at the boat. At $95, it offers fair value for convenience and variety, but its success depends on good weather, a capable guide, and realistic expectations about the snorkeling.

FAQ

How long does the Prison Island tour last?

The tour lasts approximately three hours, including the boat ride, island visit, and return to your Zanzibar hotel.

How long is the boat ride to Prison Island?

The boat ride takes about 30 minutes each way from Zanzibar to Changuu Island.

Is hotel pickup and drop-off included?

Yes. Hotel pickup and drop-off are included, although the listed meeting point is Kisauni Airport, Tanzania. Confirm the exact collection details when booking.

What is included in the $95 price?

The price includes a professional guide, hotel pickup and drop-off, and the island entrance fees described in the tour information.

Are food and drinks included?

No. Food and drinks are not included. A restaurant is available on the island at your own expense.

Can I swim or snorkel at Prison Island?

Yes. You have time to swim, sunbathe, and optionally snorkel. You should bring your own snorkeling gear if you want to be sure you have equipment available.

What animals will I see on the island?

You will see Aldabra giant tortoises, originally brought from the Seychelles. Several are more than 150 years old, and some are reported to be as old as 192.

Do I need to bring a swimsuit and towel?

Yes. The tour information advises you to bring both. You should also be prepared to walk through about a foot of water to reach the boat.

What happens if bad weather cancels the tour?

If poor weather causes cancellation, you will be offered a different date or a full refund. For other cancellations, you must cancel at least three full days before the experience start time for a full refund.