Tyning's Barrows Swallet

Underground cavers know this one well, but most visitors to the Mendips walk straight past without realising there's a proper cave system beneath their feet. Tyning's Barrows Swallet sits quietly on the hillside near Cheddar, where rainwater has carved out a network of passages through the limestone over thousands of years. This isn't a tourist cave with handrails and lighting - it's the real deal, requiring full caving gear and experience to explore safely.

Serious cavers will appreciate the technical challenges here, though beginners should definitely look elsewhere. The entrance can be tricky to spot, and once you're in, you'll need proper kit including helmets, lights, and appropriate clothing. Local caving clubs occasionally run trips for those wanting to learn the ropes.

Most families staying at nearby sites like Cheddar Woods Resort or Mendip Basecamp will be better served by Wookey Hole or the more accessible show caves in the area. But if you're already exploring the Mendip Hills and fancy a glimpse into Somerset's underground world, the surface features around the swallet make for an interesting detour during a hillside ramble. Just don't expect to pop down for a quick look without proper preparation.