Prison Island Tour – Half Day
A Prison Island Tour in Zanzibar is a fascinating half-day excursion from Stone Town to Changuu Island, better known as Prison Island. Just a short boat ride across the Indian Ocean, the island combines history, giant Aldabra tortoises, beautiful beaches and clear waters ideal for swimming and snorkeling.
The experience is perfect for travelers who want to combine wildlife, history and a relaxing island escape without spending an entire day away from Stone Town.
Explore Prison Island in Zanzibar
The adventure begins in Stone Town, where you board a local boat for the journey across the Indian Ocean.
Prison Island is located approximately 5 km northwest of Stone Town. The boat journey usually takes around 20–30 minutes, depending on the type of boat and sea conditions.
As you leave the coast, enjoy views of Stone Town and the surrounding turquoise waters.
Discover the History of Changuu Island
Prison Island is officially known as Changuu Island.
The island has a fascinating and complex history connected to Zanzibar’s maritime and colonial past. A prison complex was constructed in the late 19th century, but the site was later used as a quarantine station.
Today, visitors can explore the remaining historic buildings and learn more about the island’s past.
Visit the Giant Aldabra Tortoises
The most famous attraction on Prison Island is its population of Aldabra giant tortoises.
These enormous tortoises originated from the Aldabra Atoll in the Seychelles and were introduced to Changuu in the late 19th and early 20th centuries. Some individuals on the island are estimated to be more than 100 years old.
Walking among these impressive animals is one of the highlights of the tour.
Learn About Tortoise Conservation
The tortoise sanctuary also provides an opportunity to learn about conservation.
The population experienced serious declines in the past because of theft and other pressures. Conservation efforts helped rebuild the colony, making the sanctuary an important part of the island experience.
Visitors should observe the tortoises respectfully and follow the sanctuary’s current rules.
Walk Around the Island
After visiting the tortoise sanctuary, take a relaxing walk around Changuu Island.
The island has shaded areas, tropical vegetation and paths where you can enjoy the peaceful surroundings.
Walking gives you time to appreciate the natural beauty of the island beyond its famous historical buildings.
Explore the Historic Ruins
The old buildings are an important part of the Prison Island experience.
Explore the historic coral-stone structures and learn about their different uses over the years.
The site provides an interesting connection between Zanzibar’s colonial history, maritime trade and public health history.
Swim in the Indian Ocean
Prison Island is surrounded by beautiful clear waters.
If sea conditions are suitable, you can enjoy a refreshing swim around the island.
The combination of warm water, tropical scenery and white sandy beaches makes this a relaxing part of the excursion.
Enjoy Snorkeling
The waters around Changuu Island also offer opportunities for snorkeling.
Put on your mask and explore the shallow marine environment while looking for tropical fish and coral.
Visibility and marine life depend on weather, tides and sea conditions, so the snorkeling experience can vary from one day to another.
Enjoy the Beaches and Ocean Views
Prison Island provides beautiful views across the Indian Ocean.
Take some time to relax on the beach, enjoy the tropical surroundings and photograph the turquoise water.
The island offers a pleasant contrast to the busy streets of Stone Town.
Photography Opportunities
There are plenty of opportunities for memorable photographs during a Prison Island Tour – Half Day.
You can photograph:
- Giant Aldabra tortoises
- Historic buildings
- White sandy beaches
- Turquoise water
- Traditional boats
- Stone Town coastline
- Tropical vegetation
- Snorkeling
- Friends and family
- Ocean views
A waterproof phone case is useful if you plan to take photographs while swimming or snorkeling.
What to Bring
For a comfortable Prison Island excursion, we recommend bringing:
- Swimwear
- Towel
- Sunscreen
- Sunglasses
- Sun hat
- Comfortable sandals
- Camera or smartphone
- Reusable water bottle
- Waterproof bag
- Change of clothes
Wear comfortable clothing because you will spend time walking around the island.
Prepare for the Boat Trip
The journey from Stone Town is relatively short, but sea conditions can change.
If you are sensitive to boat movement, prepare accordingly before departure.
Follow the captain’s safety instructions when boarding and leaving the boat.
Best Time to Visit Prison Island
Prison Island can be visited throughout the year.
Morning visits can be particularly pleasant because temperatures are generally more comfortable for walking and exploring.
Sea conditions, tides and weather can affect the boat journey and snorkeling, so the exact timing should be confirmed with your local guide.
A Great Family Experience
A Prison Island Tour in Zanzibar is a good option for families.
Children can enjoy seeing the giant tortoises and exploring the island while learning about Zanzibar’s history.
Parents should supervise children around the water and when moving between the boat and shore.
Perfect for History and Wildlife Lovers
This excursion combines two very different experiences.
You can learn about Zanzibar’s past while also encountering giant tortoises and exploring a tropical island.
For travelers interested in both history and nature, Prison Island offers a convenient half-day experience close to Stone Town.
Who Will Enjoy Prison Island?
The Prison Island Tour – Half Day is ideal for:
- Families
- Couples
- History enthusiasts
- Wildlife lovers
- Nature lovers
- Photographers
- First-time visitors to Zanzibar
- Beach lovers
- Travelers staying in Stone Town
It is especially convenient for visitors who want to explore an island without committing to a full-day excursion.
Why Choose a Prison Island Tour?
A Prison Island Tour in Zanzibar combines history, wildlife and marine scenery in one short excursion.
You can travel by boat from Stone Town, meet giant Aldabra tortoises, explore historic buildings and enjoy swimming or snorkeling in the surrounding waters.
The short boat journey also makes it easy to combine the tour with other Stone Town activities.
Combine Prison Island with Stone Town
Because Prison Island is close to Stone Town, it can easily be included in a wider Zanzibar itinerary.
You could spend part of the day exploring Stone Town’s historic streets, markets and cultural attractions before or after your island excursion.
Other activities that pair well with Prison Island include:
- Stone Town tour
- Spice farm tour
- Nakupenda Sandbank
- Sunset dhow cruise
- Zanzibar cooking lesson
- Dolphin adventure
Responsible Wildlife Tourism
Help protect the giant tortoises and the island environment during your visit.
Follow the sanctuary’s instructions and avoid disturbing the animals.
Do not leave plastic or other waste behind.
When snorkeling, avoid standing on coral or touching marine life.
Responsible tourism helps preserve Prison Island for future generations.
Book Your Prison Island Tour
Book a Prison Island Tour – Half Day and discover one of Zanzibar’s most fascinating island attractions.
Take a short boat ride from Stone Town, explore the historic buildings, meet giant Aldabra tortoises and enjoy the clear waters surrounding Changuu Island.
With its combination of history, wildlife and tropical scenery, Prison Island is an excellent half-day addition to your Zanzibar holiday.