Carouceiro trees overlook a beach on the Ilheu das Rolas in the south of Sao Tom?. Ilheu das Rolos is a tiny island just of the southern coast of Sao Tom? and Princip?. It sits on the equator. It is possible to stay there at the luxuriousl Ilheu das Rolos Island Resort. Sao Tom? and Princip? is Africa's second smallest country with a population of 193 000. It consists of two mountainous islands in the Gulf of New Guinea, straddling the equator, west of Gabon.