Kbal Spean is a tributary of Siem Reap River. There are amazing sculptures of Hindu gods and creatures on the river bed. The sculptures dating from the eleventh to the thirteenth century and are mainly lingas, thus the name “river of a thousand lingas”.The 45 minute hike through the forest leading up to the river is fascinating. The route is mostly flat, with a lot of tree roots sticking out, but some areas need climbing over large rocks, sturdy hiking sandal or boot is needed.