I did 5 miles in 1 hour, 7 min and 12 seconds.......that's a 13 minute mile done 5 times in a row !!!!!
Then I cooled off for half mile. I feel great to be walking like I did in my 30's. I'm 52 now, and still challenging myself to speed up just a tad each lap :-)
I dug out my heart rate monitor and wore it for my walk today. I did an hour in my 75-80% zone. I haven't worn it in a while, today I felt like goofing off more than walking cuz it was a beautiful chilly fall day - so I used it to keep me on track rather than daydreaming during my fitness walk time.
It worked out great. I'm so proud of me for my efforts.
during my fitness walk time. 
