First is the Arenberg Forest at 94km where the race 's first major sort - out usually takes place .
The Arenberg Forest at 94km is a long stretch of road rendered dark by the overstretching trees either side of the road .
First is the Arenberg Forest at 94km , a long stretch of road rendered dark by the overstretching trees either side of the road , where the race 's first major sort - out usually takes place .