Prison Island, also known as Changuu, is one of Zanzibar's most visited day trips. But its name is misleading , it was never really a prison. Today it's a sanctuary for giant tortoises and a great spot for snorkeling. Here's everything you need to know before you go.

The History of Prison Island: From Slave Prison to Tortoise Sanctuary

The island got its name from a prison built there in 1893 by the British. It was meant to hold violent prisoners from the mainland and people with yellow fever. But the prison never actually held anyone , it was used as a quarantine station instead. Later, it became a hotel. In the late 19th century, giant tortoises from the Seychelles were brought to the island. They thrived, and today the island is a protected sanctuary. You can learn more about the island's history on Wikipedia's page for Changuu Island.

Giant Tortoises of Changuu: Meet the Island's Famous Residents

The main reason most people visit Prison Island is to see the giant tortoises. These gentle giants can weigh up to 200 kilograms and some are over 150 years old. They roam freely around the sanctuary. You can touch them and take photos. The tortoises are well cared for, and the sanctuary works to protect them. According to Colors of Zanzibar, the tortoises were originally brought from the Seychelles in the late 19th century. The island also has a small colony of peacocks, which add to the charm.

How to Get to Prison Island from Zanzibar: Ferry and Tour Options

Prison Island is only about 5 kilometers from Stone Town. The trip takes 20, 30 minutes by boat. Most visitors book a half-day tour that includes the boat ride, tortoise sanctuary, and snorkeling. Tours usually cost around $50 USD per person and last about 2.5 hours. You can also combine it with a Stone Town tour. We at Safari TZ offer private trips to Prison Island as part of our Zanzibar packages , you get a local guide and a comfortable ride. Remember to bring sunscreen, a swimsuit, and an underwater camera.

Here's a quick look at what a typical Prison Island tour is like:

Snorkeling and Beaches on Prison Island

The waters around Prison Island are part of a coral reef. Snorkeling here is easy and rewarding. You'll see colorful fish, starfish, and sometimes turtles. The best snorkeling spots are on the eastern side of the island. If you prefer to relax, the beach is clean and quiet. There's also a small bar where you can grab a drink. The island is private and managed by a hotel, so it never feels crowded. For more details on the snorkeling conditions, to Prison Island.

Best Time to Visit Prison Island and Usable Tips

The best time to visit Prison Island is during the dry season, from June to October and again from January to February. The weather is sunny and the sea is calm. Avoid the rainy season (March, May and November, December) when boat trips may be canceled. What to bring: sunscreen, a hat, swimsuit, towel, and water shoes. There are no shops on the island, so pack everything you need. Also, consider booking your tour in advance , especially during peak season. , the island can get busy, so early morning trips are best.

Frequently Asked Questions

Is Prison Island worth visiting?

Yes, Prison Island is worth visiting for its giant tortoises, snorkeling, and history. The half-day trip is affordable and easy from Stone Town.

How do I get to Prison Island?

You take a boat from Stone Town. The ride is about 20 minutes. Many tour operators, including Safari TZ, offer organized trips with transfers.

Are there giant tortoises on Prison Island?

Yes, the island is a sanctuary for Aldabra giant tortoises brought from the Seychelles. Some are over 150 years old and weigh up to 200 kg.

Can I stay overnight on Prison Island?

Yes, there is a hotel on the island. But most visitors come on a day trip. Overnight stays are possible but must be booked in advance.

What should I bring to Prison Island?

Bring sunscreen, a swimsuit, towel, hat, water shoes, and an underwater camera. There are no shops, so bring everything you need for the day.

What is the best time to visit Prison Island?

The best time is during the dry season, from June to October and January to February. The weather is sunny and the sea is calm for snorkeling.

Conclusion

Prison Island is a must-see on any Zanzibar trip. The giant tortoises, clear waters, and interesting history make it a perfect half-day escape. To make it easy, book with Safari TZ , we run our own private boat trips from Stone Town with expert guides. Contact us to add Prison Island to your itinerary.