The Kéran river runs east-west through the centre of the park, and along its course is a chain of permanent pools that hold water through the driest months. These pools are where the park is most likely to produce wildlife sightings: hippos in the deeper sections, crocodile sometimes basking on the banks, and antelope, warthog and baboon coming in to drink at dawn and dusk.
Driving the riverside tracks is the most rewarding way to spend a morning in Kéran. The road from the visitor centre south of the river crosses the watercourse at several points and gives access to viewing platforms over the larger pools. Come early — by mid-morning, animals retreat into the surrounding bush — and bring binoculars. The park rangers know which pools are currently most active and which tracks are passable.