Baychon (pronounced 'Byshon') is an extensive set of buttresses in a secluded but accessible valley. The crags aren't very popular but there is a lot of good climbing here with most grades (except the easiest) catered for.
The crags are very sheltered and face due south, it can get hot here at any time of the year, but at least in the summer the trees offer shade. The crags generally dry quickly.
From Tarascon-sur-Ariège, drive to Niaux and turn left in the centre of the village (signed Miglos). At the T-junction after 100m, turn right and drive past the parking for Sibada, winding round a few bends to the hamlet of Baychon 1.5km after leaving the main road at Niaux. Park on the left by the village sign or just round the bend to the right. Do not drive into the hamlet.
Walk up the steep road past the houses ('escalade' sign) and into the trees. The track bears left and rises steadily to arrive at the Sector Zaza in about 10 mins. The other sectors are reached by branching right up a narrower path (cairn) shortly before the Sector Zaza.