Hikers who are not staying at the campsite should park in the small car park just before the house in Saint-Pierre.
For guests of the Mas de Lastourg campsite, the walk starts from the campsite reception.
(S) Take the access road to the Mas de Lastourg campsite and the SHEM hydroelectric plant on foot. Cross the Têt bridge on foot and immediately turn left towards the SHEM plant. Pass under the Train Jaune railway bridge. At the first fork, leave the road and take a white gravel track on the right. Follow this track, which runs alongside the railway line and leads to a farm. You will come to a red and white barrier on the right, blocking vehicle access to a passage under the railway line.
(1) Pass under the railway line via this private road leading to the south-western end of the campsite. You will reach a meadow after the last permanent structures of the campsite, at an altitude of 482 metres. You are now on private property belonging to the campsite (access permitted to non-campers). Please remain discreet and courteous. Turn left immediately into the meadow, leaving the pétanque court on your left.
NB: campers can cross the entire campsite to the games field and stadium without taking the rural track.
Continue to the end of thefirst meadow and cross the next meadow, which is much smaller. A small river flows beneath your feet, descending from a ravine on the side of the Argelagosa. Continue along a farm track, marked in season by a mown path.
The path continues through a narrower passage bordered on both sides by woods. You are now between the La Têt river and the Train Jaune railway line. The path leads to a rough wooden bridge, blocked by a huge steel gate. This is a SHEM service bridge. The gate is not locked during the season (April to September). Otherwise, you will have to do a bit of acrobatics...
(2) After the bridge, the path is still fairly wide, but from spring to autumn, although it is a communal path, it is sometimes overgrown with grass (except where a passage has been cleared by the campsite owners).
The path runs between the railway line above it and the Têt river below. After a few minutes, pass through a simple barrier that roughly blocks the passage to vehicles. You will arrive at a new meadow (there are sometimes beehives; if so, keep your distance!). The end of this meadow is again blocked by a similar barrier.
The trail finally joins a wider agricultural service road. Pass close to the new water treatment plant on your left and a ford over the Têt River on your right.
(3) A few minutes later, pass a magnificent medieval bridge crossing the Têt on your right. From the ford, the path becomes a paved road, the Chemin de la Carole. You enter the urbanised area of the small village of Serdinya. First, pass a bulky waste collection area on your right.
(4) Then pass a playground and picnic area on your left before climbing a steep hill to reach a crossroads. On the left, the street passes under the railway bridge and joins the part of the village with the church, called Le Bac. On the right, which is the route we take, the street leads to the bridge that crosses the Têt and the village's central square, the destination of our walk (E).