Thanks for comments (Sorry my bad english... :) ) It is very hard to explain the exact location, the track is located in city calls Mandelieu (it is approximately 6 km to Cannes), the finish of trail is in Capitou, a Mandelieu's district. There is a map of the track. Left way is the road for climbing and to the right the DH track : http://laurent.stacul.free.fr/dotclear/images/vtt/080210/carte_DH_mandelieu.jpg