Randonnée Tro Lenn Gravel VTT

The Randonnee Tro Lenn is a gravel, mountain-bike and walking event organised by the Guerledan Cycling Club on the first weekend of October around Lac de Guerledan in central Brittany. Gravel riders can choose GPS-guided courses of 45, 75, 100 or 130 km on a mix of forest tracks, towpaths and quiet lanes, while marked mountain-bike loops of about 25, 37 and 45 km and a 12 km walking route complete the programme. The start and finish are in Mur-de-Bretagne Guerledan, with on-site catering and bike-wash facilities.