Algonquin Outfitters store out of their Lake of Two Rivers location offers mountain bike rentals in Algonquin Park from May to October. The Lake of Two Rivers store is a grocery and camp store, so you can also pick up some supplies. The store is also a trailhead for the Old Railway Bike Trail, one of Algonquin Parks most popular biking trails.
The Old Railway Bike Trail is a leisurely bicycle trail suitable for families. For most of its 16km distance (one-way), the trail follows the abandoned bed of the historic Ottawa, Arnprior, and Parry Sound Railway, opened in 1896 and decommissioned in 1959. This is Algonquin Park’s easiest bike trail, and is great for families. Several interpretive panels along the route explain Algonquin’s history.
For more information, visit their website