Hi! This is my very first post to this community, and I need some recommendations/suggestions from people who have been to Oxford before...

I will be visiting London next month and I intend to make a day-trip at Oxford. I found out about the C.S. Lewis tour that Ron Brind gives via Google. I have read positive and negative comments about the guy and the tour, so I am still undecided on whether I should go for it. Some of my considerations includes the cost of the tour, how much more "value added-ness" will the tour give, compared to exploring Oxford (and the places related to C.S. Lewis) on my own, and alternatively whether or not it is easy enough to get around the sites by walking? I understand that the tour fee is supposedly voluntary, but the fact that there is a "suggested amount" on the website says something.

Given sufficient time, I would usually prefer to explore places on my own because I think it creates a more lasting memory, but my concern is whether I am able to go to all the sites by myself.

So what would you advise me to do? Comments appreciated! :)