We spent 4 nights in June. Easy to find - but do follow the book instructions. We explored the other roads without the van and discovered why the route is as it is! We used this site because it was relatively convenient to get to The National Archives - which was the aim of our visit. The site is clean & well kept, wardens helpful. For us, 4 nights was enough - other than our visit to TNA (which in the end only took a day) we found limited attractions in the immediate area. We know Marlow & Beaconsfield. It is a good site - depending on what you want.