In Montpouillan, the Garonne Canal is linked to Marmande by the So Vélo.
The So Vélo is a beautiful greenway recently created on the former Marmande–Mont-de-Marsan railway line. Stretching 27 km, it links Marmande to Casteljaloux (Lake Clarens, Center Parcs). In the Val de Garonne, the bridges have been repainted in bright colours and the views are superb.