mahakam4dMahakam River Tours & Cruise Activities to the remote jungle water-villages of the Dayak Tribes as Borneo nature and culture wonders of Kalimantan. Guided off-the-beaten-track adventureMahakam River Cruise Tours. The Mahakam River tour (Sungai Mahakam) is still a jungle adventure trip for travellers who can make the cruise journey all the way up to the head waters