Wookey Hole Caves then passes through major cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet, around Priddy, but 95% is water that has percolated directly into the limestone. The southern slopes of the Mendip Hills largely follow the flanks of an anticline, a fold in the rock that is convex upwards and has its oldest beds at its core. On the Mendips the crest of the anticline is truncated by erosion, forming a plateau. The rock strata here dip 10–15 degrees to the southwest. The outer slopes are mainly of Carboniferous Limestone, with Devonian age Old Red Sandstone exposed
Ngarua Caves Ngarua Caves The Ngarua Caves are a series of limestone caves in the Takaka Hill range south of Abel Tasman National Park. The caves are located close to Takaka Hill's summit, adjacent to State Highway 60 as it winds its way over the Takaka Hill between Motueka and Upper Takaka. Scheduled tours suitable for people of all ages are provided by a commercial operator from the car park and cafe situated at the cave entrance. The caves cannot be visited unattended. Ngarua Caves contain a variety of cave formations along a comfortable walkway through the caves, as well as notable