7.35M – Cross Arguello Blvd then right turn onto Mountain Lake Trail, descend Mountain Lake Trail, passing Presidio Wall Playground on left

7.95M – Left turn onto connector trail

8.00M – Left turn onto trail, pass baseball field on right

8.30M – Pass soccer field on right, then pass through trail intersection, continuing straight. This is a sandy stretch.

8.45M – Turn left onto Ecology Lower, then short steep climb to Ecology Upper.

8.50M – Right turn onto Ecology Upper, descend to finish.