NIDDERDALE attracts visitors because of its sheer beauty, but also for its remarkable natural features. In Knaresborough the Dropping Well has been famous for centuries for its ability to turn things to stone. Brimham Rocks are a unique formation of spectacular windblown rock shapes that are always immediately recognised in the many films which have used them as a background. The stalactites and stalagmites of Stump Cross Caverns are amazing and enchanting.