I hiked this park for a few weeks and then decided to get a bike. I'm 68 and needed to do something for a higher level of exercise to recover from surgery, and this seemed to fit the bill. I find I like it a lot and will continue now that I'm recovered.Dara England said:I'm impressed by anyone who can do that two or three times a week. I'm always resolving to take up bicycling for the exercise but after one ride I get hot and sweaty and that's the end of it. My walks go pretty much the same way.