Prison Island Half-Day: Snorkeling, Aldabra Tortoises & Beach Time from Stone Town

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Prison Island Half-Day: Snorkeling, Aldabra Tortoises & Beach Time from Stone Town | other | bus-tour | sightseeing-tour

Read the full experience

The boat slips away from Stone Town and the harbor noise thins to gull calls as the shoreline recedes. Warm Indian Ocean water flashes turquoise; beyond the boat the low profile of Prison Island (Changuu) sits like an outcrop of coral-sand and scrub, its white beach promising a short escape.

Trip highlights

Difficulty

easy.

Duration

3–4 hours.

Fitness level

Suitable for most fitness levels; involves short boat transfers, walking on sand and shallow snorkeling

Frequently asked questions

How long is the boat ride from Stone Town?

The crossing is typically 20–30 minutes each way depending on sea conditions and the vessel used.

Is snorkeling equipment provided?

Yes — snorkeling gear is usually included, but you may bring a personal mask for comfort and fit.

Can I see giant tortoises up close?

Yes, there is a managed enclosure where visitors can view Aldabra tortoises; maintain respectful distance and follow guide instructions.

Is this tour suitable for children and non-swimmers?

Yes — the tour is family-friendly; non-swimmers can stay on the beach or shallow areas and life jackets are typically available.

Local insights

Wildlife

Aldabra giant tortoise
Reef fish and occasional sea turtles

History

Originally purchased and developed under colonial administration, the island’s 1893 gaol never housed large numbers of inmates and later became part of quarantine and conservation efforts.

Conservation

Visitors should avoid single-use plastics, use reef-safe sunscreen, and not touch coral or disturb wildlife to protect the fragile reef and tortoise habitats.

About Exotic Tours & Safaris LTD

Exotic Tours & Safaris LTD operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.

Base locationStone Town, Zanzibar

Tours offered4+

Specialtyboat-charters

StewardshipLeave No Trace

Adventure tips

Bring reef-safe sunscreenThe tropical sun is strong and sunscreen is often needed between stops; choose reef-safe formulas to protect coral.

Wear water shoesShallow reef and rocky beach edges make water shoes useful for entering and exiting the water safely.

Protect the tortoisesObserve the Aldabra giants from a respectful distance and avoid feeding them human food.

Timing for snorkelingSnorkel at high tide or mid-morning for calmer water and better visibility; ask your guide about local currents.

Recommended gear

Swimwear: Quick-dry swimwear for snorkeling and beach time.
Reef-safe sunscreen: Protects skin and coral reefs from harmful chemicals.
Water shoes: Grips on rock and reef flats, useful for beach entries.
Light cover-up or sarong: Sun protection and modesty when visiting the tortoise enclosure or island buildings.