Treadmill run at lunchtime, steady at 4.5mph. HR: avg.154, peak 164
Still wearing thin Xero sandals for these runs.

Treadmill run at lunchtime, steady at 4.5mph. HR: avg.151, peak 163
Still wearing thin Xero sandals for these runs.

Walking at lunchtime, about 4.8 km total out and back with stairs into the river valley at the far end. The watch and phone say 100m of elevation difference, about 328 feet.
Temp 26C, bright sun and no wind. HR avg.118, peak 163.