The Rivière Cap-Chat rises in the Chic-Chocs Mountains of the Gaspésie region and flows approximately 57.5 kilometres before emptying into the St. Lawrence River. The river runs through dramatic mountain terrain and is managed as a controlled harvesting zone (ZEC), which has implications for paddlers sharing the water with anglers and other users.

The river is suitable for kayaking and stand-up paddleboarding (SUP), and at least one outfitter, Valmont Plein Air, offers rentals and shuttle service for those wishing to run the river. Paddlers who bring their own equipment can arrange a lift to the put-in for a fee of approximately 5 to 10 dollars, with the take-out located at the vehicle drop-off point downstream. The coordinates for the Valmont Plein Air launch point are approximately 49.099°N, 66.674°W.

The river's water has a somewhat tea-colored appearance due to its substrate and contributions from older-growth forest soils, though it clears considerably during low-water periods. The riverbed is composed of gravel with less quartz content than some neighboring Gaspésie rivers, which means it does not produce the vivid aquamarine colors seen on rivers like the Bonaventure, though the water remains visually appealing. The river is noted for its crystal-clear quality in the context of salmon habitat.

Wildlife viewing is a draw on the Cap-Chat, with moose sightings possible during paddling excursions. The surrounding Chic-Chocs landscape provides a rugged mountain backdrop throughout the run.

Because the river is managed as a ZEC and is an active Atlantic salmon river with a fishing season running from June 15 to September 30, paddlers should be aware that wading anglers have priority on the water during this period — boats are permitted only to cross the river, not to fish from them. This regulation is specific to fishing activity, but paddlers should plan accordingly and exercise courtesy toward anglers during the salmon season. The ZEC also offers camping and cottage accommodation on-site for those planning multi-day visits to the area.