La 83 v2.0 (12-02-2017)

----- 3drerun ----
Excellent training, big thanks to the organizer! control 1-24 taped.
The terrain: partly easy running and partly very tough. Limited visibility, probaly a challenge to map.
The plan was to do the 'L' i.e. 12k.
The first hour was good.The 2nd hour very shaky.
After control 27 I was alone shortcutting the 12k tunnel, the descent to 42 was *very* demotivating as well as the climb from 44). Gradually degrading quality and a low water at 58-64. (sugar...!)