Banaba is an island of Kiribati in the Pacific Ocean. A solitary raised coral island west of the Gilbert Island Chain, it is the westernmost point of Kiribati, lying 185 miles east of Nauru, which is also its nearest neighbour. It has an area of six square kilometres, and the highest point on the island is also the highest point in Kiribati, at 81 metres in height. Along with …Banaba is an island of Kiribati in the Pacific Ocean. A solitary raised coral island west of the Gilbert Island Chain, it is the westernmost point of Kiribati, lying 185 miles east of Nauru, which is also its nearest neighbour. It has an area of six square kilometres, and the highest point on the island is also the highest point in Kiribati, at 81 metres in height. Along with Nauru and Makatea, it is one of the important elevated phosphate-rich islands of the Pacific.