When we arrived we were given a 'magic key' to the wooden door in the old stone wall.  The key may not have been magic but it did provide access to the grounds of Chatsworth House and that is the main attraction with this site. Great wandering around early morning and in the evening when the park is quiet. It's also only a short walk to a couple of pretty villages and to the house itself. Discounted admission is available but we used a 2for1 'treasures houses' leaflet from a previous visit to Blenheim Palace that worked out cheaper. Back to the site and the facilities are of a high standard. Yes there are some noisy birds and trees but you are in the countryside. My only suggested improvement would be better signage. I went around the site a couple of times before I found the motorhome service point (probably just me!).