You lie with your head forward on your foam sled which allows you to slide and therefore navigate. The Isère is the Savoie river most suitable for whitewater swimming or Hydrospeed. The gorges route, from Aime to Centron which is offered to beginners, is a sporty descent which allows you to feel the pleasures of sliding in the rapids and surfing on the waves from the first session (7km of descent, approximately 1h30 in water) . After having acquired the technique of swimming in white water on the gorge course, you can then do the much more technical and longer improvement course (14km, approximately 2h30 in the water).