Three years ago I bought my first road bike and heard about century rides, cycling 100 miles in a day. Without training I decided to try the challenge and see how far I could go. I completed the ride and it felt so great I've done one each year, three total so far. The first two years I started and ended at home. Last year I drove to a trailhead and biked 100 miles one-way, camped, and got a ride back to the vehicle two days later. Since I don't own a vehicle, the out-of-town rides involve more planning. I haven't decided on a route or date yet for this year.