The Scoudouc River is a tidal river in southeastern New Brunswick that flows into Shediac Bay near the town of Shediac. The river is sandy and fairly shallow in places, with a marked boat channel for small motorboats. Moving upstream from the mouth, the banks are initially lined with houses that gradually thin out to occasional cottages. About 3 to 4 kilometres upstream, the river narrows and becomes rocky, which effectively marks the practical limit of upstream paddling. The river drains into Shediac Bay, which opens to the Gulf of St. Lawrence.

Because the Scoudouc is tidal, water levels fluctuate significantly with the tides. At low tide, navigable distance is severely limited, so consulting a tide table before any outing is essential. At higher tide, paddlers can travel upstream along the river or paddle out under the bridge at Shediac to access Shediac Bay and open salt water. The river is popular for fishing, with striped bass, brook trout, and Atlantic mackerel among the commonly caught species.

The primary access point is off Riverside Drive in Shediac, where there is a small unpaved ramp and a short sandy beach. The ground near the launch is somewhat soft and is not suitable for large boats or heavy trailers, but works well for canoes and kayaks. The carry from the road to the water is approximately 40 feet. There is no roadside parking at this location, but a public park on Rue Avard across the street provides street parking at no charge. No fees are required to use the launch. In autumn, the river banks offer notable fall foliage colour along the tree-lined stretches upstream.

Historically, the area around the mouth of the Scoudouc River has been significant as a Mi'kmaq encampment site and later as a centre for shipbuilding and early rail transport in the Maritimes, giving the surrounding area considerable cultural depth for those interested in the region's history.