The Rivière des Prairies flows for approximately 40 kilometres between the islands of Montreal and Laval, originating at the Lake of Two Mountains. With an average flow of 1,365 m³/s and a total elevation drop of just 14.6 metres, it is one of the most urban rivers in Quebec, running through a densely populated metropolitan area while still maintaining stretches of natural shoreline.

The river's consistent current and occasional swifts make it best suited to downstream travel rather than out-and-back trips. The Gouin Route is the primary paddling corridor, with two established launch sites: Parc Beauséjour (6891 Blvd Gouin Ouest, Montreal) and the Sophie-Barat Nautical Site. A one-way downstream trip between these two points is the recommended route, and a shuttle service is available to facilitate the journey. Paddlers who prefer a self-supported return can take advantage of an adjacent bicycle path, with a bike transport option offered through the GUEPE organization as part of their rental packages.

GUEPE operates out of Parc Beauséjour and offers single kayak rentals as well as one-hour training sessions for those new to the river. The Île-de-la-Visitation Nature Park and Pointe-aux-Prairies Nature Park also provide access points to the river, the latter located roughly 30 minutes from central Montreal.

Along the banks, paddlers pass waterfront homes and riverside parks, with efforts made to preserve natural spaces despite the urban surroundings. The Fondation Rivières notes that while no designated public swimming areas exist on the river, water quality in dry weather is considered satisfactory at roughly a dozen locations according to historical monitoring data. During rain events, sewage overflows can affect water quality, so paddlers should be aware of conditions following precipitation. Bank erosion has also been identified as an ongoing concern along portions of the river.

No specific restrictions on paddling have been identified for this waterway. The river is accessible year-round, with at least some paddlers venturing out in winter conditions, though summer remains the primary season for organized rentals and guided experiences.