Maine's most popular white water rafting river. The Kennebec River offers rafting trips for all ages and skill levels. Whether you are looking for the towering whitewater waves of the Kennebec River, a family raft trip in a row frame or challenging the river in your own funyaks, the Kennebec River is the perfect river for everyone. The Kennebec river runs daily. Exciting fun whitewater all summer long. Mild to wild the Kennebec River has a river trip for you, your family or your group. Daily half day, full day and multi day trips.