Circuit of the Luizet waterfall and Tour du Tréfond (full version)

(1) Serrières - Gambetta Bridge (1h)
Take the rue du Canal then walk along the church (1964th-32th century, restored in XNUMX) as far as the RDXNUMX (paved road), cross it, follow the path that goes up to the right of the water tank.
At the level of the old quarries, take a path on the right which crosses, by a small descent, another old quarry. Continue through vineyards and pastures, cross the RD32 (paved road), take the wide path opposite which descends and crosses the river by the Gambetta bridge.

(2) Bridge - Onglas car park (45')
Follow the path through the vineyards that goes up to the hamlet of Onglas (typical houses of Bugey). The paved road crosses the village, turn right at the crossroads towards Seillonnaz. At the exit of the agglomeration, towards a cross, turn left.

(3) Onglas - Waterfall car park (45')
Leave the car park on the left and take the path on the right that goes to the Luizet waterfall.

(4) Waterfall - D32 (45')
From the waterfall, take the path as if to return to the Onglas car park. At the fork on the way out, after about 2.5km take a path at an acute angle to the right (N/NO). Continue on this path, then a path until you cross the Tréfond river and cross it. Go up on the D32.

(5) D32 - East Onglas (1h)
Take the D32 downhill, then at the 1st crossroads go up on the right (D99a)
We arrive at the "Golet du Mur", the highest point of the walk. Then take the path on the left going down to Bénonces (south). Go through the village towards Seillonnaz (D84c). After 100 m turn right on a stony path which crosses the stream and ends in Onglas (fountain).

Return: continue straight on leaving the village (after Croix du Clos on the left) and join the outward route, shortly before the Gambetta bridge. back to the starting point