Trail du Lac de Paladru is a trail-running series around Lake Paladru in Isere, with three main distances: a 17 km semi-nocturnal race, a 32 km trail, and a 55 km Grand Tour du Lac. The short race starts in Charavines at 7:30 PM and can be run solo or as a duo, while the 55 km starts in the morning from Camping Detente & Clapotis in Montferrat and the 32 km starts from the camping site the next day. All three races are UTMB Qualifiers, and the longer two also carry ITRA points.
The courses are hilly without relying on one huge mountain climb: the 17 km has 740 m of gain, the 32 km has 1,000 m, and the 55 km has 2,028 m, with the longest climb on each route around 240-250 m. The 17 km asks runners to carry their own food and drink, while the 32 km has three aid stations and the 55 km has three solid aid stations plus one liquid station. Mandatory kit and time barriers apply across the races. Entries are capped at 300 solo runners and 100 duos for the 17 km, 900 runners for the 32 km, and 600 runners for the 55 km; in the duo race, partners must start and finish together.