It's in Leyburn. It's more of a chocolate factory actually, but they give you a guided tour and there's a lot to look at-however It's quite a small place.
I wouldn't go to Leyburn JUST to go there but as part of a day out it's great-I think we went for a long walk then to Forbidden corner then to the chocolate place-I think it's called 'The Little Chocolate Shop'.
