Interesting and fun, this was one of the best things we did in NYC. Apart from some difficulty finding our starting point (I'd recommend Googling this beforehand as it's next to a busy intersection and it took us a while) this was a really memorable experience. Bob - our knowledgeable guide - took us along the Hudson River, through Chinatown, across Manhattan Bridge to Dumbo, through Brooklyn Heights and back along Brooklyn Bridge. We cycled with two teens, both who really enjoyed this too. Even though it was quite busy, we felt safe - most of the route is along cycle paths. Much of the route was in the shade which was great in the heat and it was good to get the breeze from cycling.