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Mangapwani Slave Caves

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The Mangapwani Slave Caves on the island of Zanzibar consist of a natural limestone cavern and a nearby man-made coral stone chamber. Historically, these sites played a dark role in the East African slave trade, particularly after the official abolition of the trade in 1873. Wealthy merchants, such as Mohammed bin Nassor Al-Alwi, used the concealed location to hide enslaved people before they were illegally shipped to the Arabian Peninsula. The man-made chamber is a square cell carved into the ground, originally covered by wooden planks and soil to evade detection by British authorities. Visitors today can explore the narrow steps leading down into the damp, dark enclosures where hundreds of people were once confined in horrific conditions. The site serves as a somber memorial to the human rights abuses of the 19th century and remains a significant historical landmark in the Zanzibar Archipelago.
- Location: Tanzania
- Top sights: Coral Cave and Slave Chambers · WWII Bunkers · Slave chamber
- Nearby: Prison Island (12 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 27 | 27 | 27 | 27 | 25 | 24 | 24 | 24 | 25 | 26 | 27 | 27 |
| Rain mm | 118 | 89 | 163 | 279 | 171 | 28 | 21 | 27 | 41 | 111 | 164 | 141 |
📋 Practical info
Geography
Facts
- Official abolition of the slave trade in Zanzibar in 1873
- Mohammed bin Nassor Al-Alwi built the secret chamber
- The natural cave consists of limestone formations
- The man-made chamber was constructed from coral stone
- The site is located about 2 km from Mangapwani village
- The chamber takes the form of a square cell underground
Explore nearby
Notable places around
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Sights in the town Mangapwani Slave Caves (4)
Sights nearby
Frequently asked questions
Is a flashlight necessary for the caves?
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Mangapwani Slave Caves: where is it located?
Mangapwani Slave Caves: what is there to see?
Mangapwani Slave Caves: when is the best time to visit?
Mangapwani Slave Caves: why is it worth visiting?













