There were a number of people who brought their own bikes. We did for our 2 year old, not that he was riding any great lengths. We ended up renting from Disney because we didn't have the space to bring our own. It cost us $74 for the week for 2 adult bikes, a bike for our 7 year old and a trailer for the 2 year old to ride. Fortunately this year we didn't have any problems with the bikes we rented, did last year. This year we had our cell phones with just in case. Have a great trip!