A proper warm-up in the woods (for once!). Actually, it helps in a way other loosening up the legs and lungs - gets me used to my one-contact system, so when the race starts I am literally better focused.
orienteering45:54 [4] 5.75 km (7:59 / km) +951ft6:22 / km
Felt pretty good physically, walked 5 times up short steep slopes (maybe 30-40 meters each), ran the last part well.