"If there's a good way to experience both Cambridge and Greenwich it is through this tour. The guide, Laura, is well prepared when it comes to information, dropping small and interesting facts throughout the whole trip. We are given enough time to explore Greenwich and Cambridge, although considering that they're quite big. In Cambridge you're given the option to go punting. I recommend those going to do it since you get to ser part of the city you wouldn't see otherwise and the guides are great. The guide on my trip would talk about the city's history with jokes, which was awesome. Do give it a try."