The marina Pontrieux is the meeting point of the water sweet and maritime parts of Trieux. This river has a particular interest in canoeing and kayaking river and sea:
Upstream, the whitewater portion of the river is navigable for several kilometers, depending on the water level and experienced paddlers. Many weirs are to be overcome. Upon arrival, crossing Pontrieux to discover the wash of the city.
Downstream part of the maritime Trieux allows the thread joining the tide of the sea estuary 18 km This remains one of the best preserved in Brittany. Sea kayaking is the ideal machine to discover quietly and in the greatest calm the riches of this remarkable site.