Planning a trip for June 18-23 in London. Travelling with my best friend, we're both recent college graduates and are looking to make a day trip to either Oxford or Cambridge, but can't decide between the two. Which should we do? Is one much easier to get to from London than the other, or one have more interesting things to see? We'd love to just wander around the campus, although I'm not even sure that's allowed.
Any help would be appreciated.