We are staying in central Cambridge for the next week or so and have been taking the dcs out to some of the parks and pools etc around town. I was wondering if anyone could recommend some longer routes (maybe 5-10 miles) that would be fun to do with them, preferably with a park or something else for them to do at the end. They are little and just passengers on the bike so the route itself doesn't have to be particularly easy, but the bike is BIIIG so has to be able to fit down the paths.