2- After crossing the "tourist route", take the path that crosses the old salt marshes of Beaumer.
The old marsh water supply facilities, the ruins of the salt storehouse and some water basins are still visible.
The shrub vegetation that colonized this multi-acre area grew over the mud resulting from dredging for the construction of the marina of La Trinité in 1991.
3- After crossing the D781 road, go to the "Kerdual estate", a private property built on an old salt marsh and whose salt storehouse is now a holiday home. Continue straight ahead and cross a shrub ( for about 150m).
You will come out on a small path: it is the old road that linked Carnac to La Trinité, probably from the Roman period road or even earlier.
Turn right towards Kervinio. After 200m, a calvary erected in memory of the abbot Baron, a Carnac priest assassinated by the republican troops (the "Bleus") during the French Revolution.
Whilst crossing the villages of Kervinio and Le Quéric, you will notice farmhouses (longhouses or set vis-à-vis), and small traditional houses, as well as the village commons (fountains and wash houses).
4- After the Fountain of Le Quéric, cross the eponymous residential area and the village of Kerchican and take the path along the Kerdro-vas estate and the marshes of Kerdual, that remain in their natural, untouched state, although blocked by the dike of Le Poulbert.
When you reach the Men-Dû road, go down a hundred meters and on the left, a "douet" and a fountain.
Return to the starting point by rue du Men-Dû or by the streets of Kerhino.