mahakam 4dDiscover the hidden treasures of Borneo as you embark on a 4-day expedition along the captivating Mahakam River. Departing from the coastal city of Balikpapan, our adventure takesDAY 01 AIRPORT BALIKPAPAN – LOAJANAN – MAHAKAM RIVER Upon arrival at Sepinggan International Airport of Balikpapan then meeting service and transfer by airconditioned