Kubu island is important, sacred site for local people of all nations up to this day. Those men who are older than 16, come here to make a contact with God, here they may sing a special song for rain. Offerings are left here up to this day.
Most likely the original local name of the site is Ga'nnyo, given by local Khoe people (1). Current name of the island - Kubu - means "large rock" in Kalanga language. Often it is mentioned that its name comes from "hippopotamus" in Tswana language, what seems to be an error.