Take the canle car to the top of Brevent. Ski down the pist until you are on the front side of the mountain. When the pist starts turning left follow beneath the cliff for around 50m and you find the entrance.
Very nice colouir. 42 degrees in the beginning so this is a nice warmup for ensa. Its turns left after a while and ends up in the big brevent bowl were you continue down or walk depending in snow depth. Its a south side and gets sun from early morning so be there in time.