THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Spend a day on Prison Island (Changuu) swimming clear reef waters and meeting ancient Aldabra tortoises. This full-day trip from Stone Town mixes shallow snorkeling, local history, and relaxed beach time.
Spend a day on Prison Island (Changuu) swimming clear reef waters and meeting ancient Aldabra tortoises. This full-day trip from Stone Town mixes shallow snorkeling, local history, and relaxed beach time.
A short wooden dhow slices through the Indian Ocean and the shoreline of Stone Town recedes into a band of rust-red roofs and minarets. On the horizon, Prison Island—Changuu—rises as a low, coral-limestone rim crowned by palms and the slow silhouettes of giant tortoises grazing in the shade.
Verified experiences and guided adventures in the surrounding area.
Operated by Select Safaris Africa · Stone Town, Zanzibar
A short wooden dhow slices through the Indian Ocean and the shoreline of Stone Town recedes into a band of rust-red roofs and minarets. On the horizon, Prison Island—Changuu—rises as a low, coral-limestone rim crowned by palms and the slow silhouettes of giant tortoises grazing in the shade.
The island carries layered history: a 19th-century quarantine and prison site, later a colonial retreat, its abandoned walls now weathered coral stone. Geologically it’s an uplifted reef platform; underfoot the sand is ground coral, and the shallow reef around the island drops from finger-deep flats into snorkeling channels about 3–6 meters deep. Culturally, the island is a short escape from Stone Town’s market rhythm—locals run the boat services and guides explain both conservation efforts for Aldabra tortoises and the island’s complex past.
Expect hands-on wildlife moments: gentle Aldabra tortoises will approach pens and guides will explain breeding and release work. Snorkeling is typically calm with visibility often 10–20 meters; look for parrotfish, angelfish, and occasional green turtles. The beach and shaded areas invite a slow lunch and photos.
Practical guidance: boats leave harbors in the morning; plan on an 8-hour excursion including transfer from Stone Town, a 20–30 minute boat ride each way, two snorkeling sessions, and time with the tortoises. Bring reef-safe sunscreen, a lightweight mask if you prefer your own, and a water-resistant bag. Moderate fitness is enough—you’ll climb aboard boats and walk uneven sand and coral paths. Book mid-morning for calmer seas and softer light for photos.
The boat crossing typically takes 20–30 minutes each way, depending on the vessel and sea conditions.
Yes—snorkeling sites around Prison Island are shallow with calm water; guides provide basic instruction and life jackets if needed.
Interaction is supervised; touching is usually allowed under guidance but feeding may be restricted to approved food to protect their health.
Most tours include hotel pickup and drop‑off within Stone Town and selected beach resorts—confirm pickup point when booking.
Select Safaris Africa operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
A short wooden dhow slices through the Indian Ocean and the shoreline of Stone Town recedes into a band of rust-red roofs and minarets. On the horizon, Prison Island—Changuu—rises as a low, coral-limestone rim crowned by palms and the slow silhouettes of giant tortoises grazing in the shade.
A short wooden dhow slices through the Indian Ocean and the shoreline of Stone Town recedes into a band of rust-red roofs and minarets. On the horizon, Prison Island—Changuu—rises as a low, coral-limestone rim crowned by palms and the slow silhouettes of giant tortoises grazing in the shade.
The island carries layered history: a 19th-century quarantine and prison site, later a colonial retreat, its abandoned walls now weathered coral stone. Geologically it’s an uplifted reef platform; underfoot the sand is ground coral, and the shallow reef around the island drops from finger-deep flats into snorkeling channels about 3–6 meters deep. Culturally, the island is a short escape from Stone Town’s market rhythm—locals run the boat services and guides explain both conservation efforts for Aldabra tortoises and the island’s complex past.
Expect hands-on wildlife moments: gentle Aldabra tortoises will approach pens and guides will explain breeding and release work. Snorkeling is typically calm with visibility often 10–20 meters; look for parrotfish, angelfish, and occasional green turtles. The beach and shaded areas invite a slow lunch and photos.
Practical guidance: boats leave harbors in the morning; plan on an 8-hour excursion including transfer from Stone Town, a 20–30 minute boat ride each way, two snorkeling sessions, and time with the tortoises. Bring reef-safe sunscreen, a lightweight mask if you prefer your own, and a water-resistant bag. Moderate fitness is enough—you’ll climb aboard boats and walk uneven sand and coral paths. Book mid-morning for calmer seas and softer light for photos.