We rented bikes just outisde the park. The bike place told us it was an 'easy' 9.7 mile ride. Parts were easy, but there were plenty of parts that weren't so easy...like pedaling up all those big hills! If you rent a tandem bike make sure both riders are equally fit otherwise it's going to be awfully hard to get both of you & the bike up those hills. We saw many people walking bikes up hills. There are plenty of things to do & see along the bike path. Stop at the beach (about half-way through the journey) and it as well as the playground & concession stand. Would definitley do again! Families with younger children should be aware that there may be lots of walking bikes instead of riding them!