Prison Island Zanzibar Guide – Tortoises, History & Tours

Your Ultimate Prison Island Zanzibar Guide

Prison Island, or Changuu Island, is a must-visit destination just 5.6 km off the coast of Stone Town, Zanzibar. Known for its giant Aldabra tortoises, historical prison ruins, and pristine coral reefs, it’s a perfect blend of nature, history, and adventure. Whether you’re feeding century-old tortoises, snorkeling among tropical fish, or exploring the island’s intriguing past, a Prison Island tour with Capable Africa Tours offers an immersive experience. This guide covers everything you need to know, including the island’s history, top activities, tour costs, and practical tips to make your visit unforgettable.

Why Visit Prison Island?

Prison Island is more than just a day trip—it’s a journey through time and nature. The island’s unique combination of wildlife (home to over 50 giant tortoises), historical significance (a former quarantine station and prison), and marine biodiversity (vibrant coral reefs) makes it a standout destination. It’s ideal for travelers seeking a mix of relaxation, education, and adventure, all within a short boat ride from Zanzibar’s vibrant Stone Town.

The History of Prison Island

Prison Island’s history is as captivating as its scenery. Originally purchased by a British official in 1893, the island was intended as a prison for rebellious slaves but was never fully used for that purpose. Instead, it served as a quarantine station for ships arriving in East Africa during the late 19th and early 20th centuries to prevent the spread of diseases like yellow fever. The crumbling ruins of the prison and hospital buildings still stand, offering a glimpse into Zanzibar’s colonial past. The island’s giant tortoises, gifted by the Seychelles government in 1919, are a living legacy, with some over 150 years old.

Key Historical Facts

• 1893: Island purchased by British First Minister Lloyd Mathews.
• Quarantine Era: Used to isolate passengers suspected of carrying diseases.
• 1919: Four Aldabra tortoises gifted from Seychelles; population now exceeds 50.
• Today: A protected sanctuary for tortoises and a popular tourist destination.

Top Activities on a Prison Island Tour

A Prison Island tour with Capable Africa Tours is packed with activities for all interests. Here’s what you can expect:

• Meet Giant Tortoises: Interact with Aldabra tortoises, some weighing over 200 kg and living over 150 years. You can feed them (with supervision) and learn about their conservation.
• Explore Historical Ruins: Wander through the remnants of the prison and quarantine hospital, with guided insights into their historical significance.
• Snorkeling in Coral Reefs: Dive into crystal-clear waters to see colorful coral reefs and marine life, including tropical fish and sea turtles.
• Beach Relaxation: Unwind on the island’s white-sand beach, perfect for a post-tour swim or sunbathing.
• Photography: Capture stunning views of the tortoises, ruins, and turquoise waters—perfect for Instagram-worthy shots.

• Tortoise Population: Approximately 50–60 giant tortoises, with ages ranging from 30 to over 150 years.
• Island Size: 800 meters long, 230 meters wide, covering about 12 hectares.
• Boat Travel Time: 25–30 minutes from Stone Town (5.6 km).
• Snorkeling Depth: Reefs accessible at 2–10 meters, suitable for beginners and pros.

Prison Island Tour Costs and Options

A Prison Island tour is affordable and customizable, with options to suit every budget. Capable Africa Tours offers the following packages:

• Budget Tour: $35–$50 per person. Includes boat transfers, tortoise sanctuary entry, and guided ruins tour. Ideal for solo travelers or small groups.
• Standard Tour: $50–$75 per person. Adds snorkeling gear and a guided reef tour to the budget package.
• Premium Tour: $75–$100 per person. Features private boat transfers, a gourmet lunch, and extended snorkeling time.

Additional Costs:

• Conservation Fee: $4 per person for tortoise sanctuary maintenance.
• Tips: $5–$10 per group for guides and boat crew.
• Optional Extras: Snorkeling gear rental ($5–$10) if not included; photography services ($20–$50).

Budget tours are perfect for backpackers seeking a quick visit, while premium tours offer a luxurious, all-inclusive experience with more time to explore.

Practical Tips for Your Prison Island Tour

To make your Prison Island tour seamless, follow these tips from Capable Africa Tours:

• What to Bring: Pack swimwear, sunscreen (SPF 30+), a hat, water shoes (to protect against coral), a towel, and a waterproof camera. Snorkeling gear is often provided, but confirm with your tour operator.
• Best Time to Visit: Year-round, but October–March offers calm seas and warm weather (25–30°C). April–May can bring rain, affecting boat schedules.
• Health and Safety: Apply insect repellent for mosquitoes, stay hydrated, and follow guides’ instructions around tortoises and during snorkeling.
• Eco-Friendly Practices: Avoid touching corals while snorkeling and don’t feed tortoises without permission to protect the ecosystem.
• Accessibility: The island has uneven terrain; inform Capable Africa Tours if you need assistance for mobility challenges.
• Connectivity: Limited Wi-Fi on the island; purchase a local SIM or eSIM in Stone Town for data.

Conservation Efforts on Prison Island

Prison Island is a sanctuary for Aldabra tortoises, a vulnerable species. The tortoise population is carefully monitored, with conservation fees supporting their care and habitat preservation. Capable Africa Tours partners with local conservationists to promote sustainable tourism, ensuring the island’s ecosystem and wildlife thrive for future generations.