Shimoni derives its name from the presence of caves by the seashore formed by natural forces millions of years back. The head of the coastal archaeology, according to research the caves were used as places of confinement before shipment to the biggest slave market in Zanzibar.
In order to hinder their movements, the slaves had to be shackled and then fastened on the hooks attached to the cave walls. Excavation in the cave compartment recovered several iron fragments - implements that had a bent front and another long part with holes.