Park in the car park signposted “Vallée du Lude” in Carolles.
(S/E) Set off due west and head down into the forest of the Lude Valley.
(1) At the junction, turn right and follow the River Lude. The path is sometimes fitted with wooden walkways. Carry on, ignoring the paths on either side, until you reach Port du Lude and its pebble beach. At low tide, the rocks are exposed and you can find various shells there.
(2) Return to the car park (S/E) by following the route in reverse.