it may be tricky to find and don't be put off by the winding country lanes, you are going in the right direction! I would recommend having a tour by one of the staff rather than headphones. The place has been refurbished and the new facilities are excellent particularly for school trips, where the children were sorting bones and making mosaics in the classroom. Make sure you stop off in the cafe and try to spot the gigantic snails hidden in the garden borders. It is a very quite and peaceful place away from the hustle and bustle of most tourist attractions, well done National Trust for keeping it that way!