X-C skiing (classic) 1:59:40 [2] 10.8 km (11:05 / km) +90m10:38 / km ahr:122 max:170 rhr:54 slept:8.0 weight:228kg
Skied in Snow valley, not tracked, not packed. Just toured around to get the hours in, -16 so kept it easy. On rock skiis.
Did 4 interval sprints at the end (1:1)
800Cal, Intervals - Peak 170 drop to 150 (in 1 min rest) As intervals increased the recovery rate increased as well.