Under a 500 meter-long and 34 meter-wide tunnel, Snow Hall, the Amneville les Thermes indoor ski slope, is one of the largest indoor slopes ever built.
Made of real powder snow kept at a temperature of between -4 and -5°C, the slope consists of several different sections enabling all winter sports fans, from beginners to the brave or even foolhardy, to take part. There are different gradients, which vary between 20 and 25%.