Tuesday, 2nd day of walking with my 22 pound backpack. Went 2.66 miles at a 3.1 mph pace for 50 minutes. My lowest oxygen level was at 95. I felt the legs were a little sore but decided to push on and go a little farther. Needed to do some stretching when I got back. Hopefully I can go tomorrow even with the threat of up to 10 cm of snow coming.