The first day trip that the London IFSA-Butler staff organized fo us was a trip to Bath. The one requirement was that you had to get to the London office on your own and after that everything was taken care of. So after a long bus ride (though definitely not as long as the one to the Lake District), we disembarked and headed into the city center where we then received our audio guides and headed into the Baths, exploring them at our own pace and listening to the information that we felt was most interesting to us. It was the perfect way to explore the ancient baths, moving at your own pace and being able to soak up the history as much or as little as you wanted.
Whenever you finished at the Baths, you had the rest of the time to explore the city as you desired, whether it was checking out the various museums and sites or simply relaxing at a shop. It was great to be able to meander and just experience a city that was different and try to figure out all that it had to offer. Then it was back on the buses at the appointed time for the trip back into London and then from there back out to Oxford. It made for a very long day, but it was definitely worth it.