Something tourists and locals alike have to try at least once. There are actually several boats of varying sizes that go on different tours. The Good Ship Lollipop is geared towards families with young children. I've been on the lock and dam tour twice, among others. I've never taken one of the dinner cruises, but they do have a snack bar with basic eats and drinks on the longer cruises. There can be crowds at times, but it;s a nice way to enjoy the scenery and learn some history.