 Water cannons (typically coin-operated, like The Flume at Alton Towers, by passersby) aimed along the path are sometimes installed alongside the flume.Additionally, the exit path from the ride may cross over or go near to the flume, such that departing riders are drenched by the boat currently en route.One of the first elaborately-themed flumes was Timber Mountain Log Ride at Knott's Berry Farm.