Kotabaru is the ocean island South Kalimantan, Indonesia Understand Kotabaru is on Pulau Laut (Sea Island), the biggest outlying island off South Kalimantan. Get in By plane Gusti Syamsir Alam Airport (IATA: KBU Stagen Airport), -3.2967°, 116.1662°. Has flight from Banjarmasin and Balikpapan. By bus There are buses from Banjarmasin. Get around See Temuluang stalactite cave Do Buy Eat Drink Sleep Connect Go next