Sebatik Island is an island off the eastern coast of Borneo, partly within Indonesia and partly within Malaysia. It is one of the 92 officially listed outlying islands of Indonesia.
Sebatik has an area of approximately 452.2 square kilometres. The minimum distance between Sebatik Island and the mainland of Borneo is about 1 kilometre.Sebatik Island lies between Tawau Bay to the north and Sibuku Bay to the south. The town of Tawau lies in Sabah just to the north. The island is bisected at roughly 4° 10' north by the Indonesia–Malaysia border - the northern part belongs to Sabah, Malaysia while the southern part belongs to North Kalimantan, Indonesia.
Wikipedia https://en.wikipedia.org/wiki/Sebatik_Island
Address 77483, Indonesia
Coordinates 4°5'26.96" N 117°50'8.249" E