Race website http://www.cmbm.asso.fr/nos-courses
Organized by Chamonix’s energetic trail running club, CMBM, the Cross Relais Nocturne is a nighttime relay race with a festive atmosphere. Starting in Chamonix at 8:00 in the evening, teams of two begin an uphill course with each participant completing six 720-meter loops, for a total distance of about 4.3 kilometers. After the race, there is a buffet dinner prior to the awards presentation. Two, shorter race options exist for kids aged 8 to 15.
Currently, there is no information about the 2020 race and the date is based on when the course is traditionally run, therefore the above date may not be correct.