answer:I did one of the three-day walks a few years ago (approx. 60 miles in three days). Yes, there were hundreds of people, maybe thousands, who participated, and it was very exhilirating. It was really nice to have the crowds cheer you on along the streets, too. I was on a team, and we were tasked with raising money. I was fortunate that my company matched the funds that we were able to raise independently, so that helped greatly. I didn’t have enough time to train (I wasn’t a regular walker at the time), but I put a lot of effort into getting in shape for the walk starting a couple months out. Do they care how much you walk—well, “they” don’t; but your own sense of accomplishment should drive that aspect of it. If you’re doing a three-day, one of the hardest parts for me was camping for the two evenings. To complete such a task was very rewarding, and I felt a real connection to it. Good luck!