The Mangapwani Slave Chamber is a couple of kilometers not far from the coast from the Coral Cave. Albeit sometimes called the Slave Cave, it is a square-formed cell that has been removed of the coralline rock, with a roof on top. It was initially worked for putting away slaves, and its development is credited to one Mohammed container Nassor Al-Alwi, a significant slave broker. Moreover, the boats from the mainland would empty their human freight on the close by the beach, and the slaves would be kept here prior to being taken to Zanzibar Town. They are to be resale or taken to work on plantations on the island. It is felt that sometime after 1873 when King Barghash marked the Somewhat English Zanzibari arrangement which officially abrogated the slave exchange, the cave was utilized as a spot to conceal slaves, as an illegal exchange proceeded for a long time. Afterward, the region turned into the property of the Rich Arab landowner known as Hamed Salim el Harthy who had numerous slaves dealing with his plantations. During this era, the cavern was rediscovered by a little fellow searching for a lost goat. Neighborhood individuals had the option to utilize the water once more, while Hamed Salim masterminded his slaves to gather the water routinely for his own utilization. It has been suggested by students of history that the cave may have been utilized as a concealing spot for slaves after the exchange was officially annulled in 1873.