After spending some time at the Cango Caves it was time for lunch and I wasn't particularly partial to the excessive pricing at the facilities on site.
My travelling partner suggested we stop in at the Wilgewandel Holiday Farm immediately below the Cango Caves. They run a large self service restaurant with a substantial menu and facilities that more than adequately cater for large groups.
There are facilities for children but note that many activities are charged for. Still, it was a great breakaway from the caves and a good place to chat and dine in tranquil surroundings.