The park features rapids and a waterfall as well as a substantial fish ladder constructed by Fisheries and Oceans Canada which allows half a million coho, sockeye and chinook salmon to pass upriver during the annual run from August to December. Spawning for these species takes place in the upper reaches of the river and in Great Central Lake. During the salmon run season, there is a greater prevalence of black bears in the area, attracted by the abundance of fish in the river.