We have been to Crystal Palace campsite before and would use it again. Not an ideal journey to reach the site from the southwest, but once there we were able to park up (lots of space around the motorhome) and enjoy what London has to offer. Plenty of travel options to get in to London (bus and train). I thought that the travel advice provided by the campsite was brilliant. They had files full of slips of paper with detailed instructions on how to get to a number of places of interest, in London, closer to home and also sporting venues, particularly useful to us as we were heading to Twickenham on one day. Getting back from Royal Albert Hall was a doddle with their info. Don't miss the Crystal Palace Museum (only open on Sundays) or a wander around the park (the dinosaurs are fun for all ages). There are loads of restaurants within walking distance. So much to do in London I'm sure it won't be long before we visit again.