We were on the way to Knole and passed a sign for Riverhill and decided to go there instead. Glad we did. Dogs welcome. Nice cafe. There is so much to the garden to explore. The top of the hill has a great view. Couscous seemed to love it so we got a season pass. We need to go back 2 more times by end Oct 2019 to make it worthwhile so we should be ok. Unfortunately they are closed over the winter.