Family of 4, girls ages 15 and 12. Surprised at how well our 12 yr old did considering she doesn't bike often. Group stayed close together. We were only 9 people. Felt we did a lot in the time allowed. Margie was sweet, had to fix a flat tire by Buckingham palace (actually perfect spot to spend time). Would definitely do again. Feedback, wish we had another hour so we could stop a little longer for picture taking, q and a.