Beneath the Redcliffe area of Bristol runs a network of manmade sandstone tunnels and caverns extending over about an acre — the Redcliffe Caves. The caves were originally quarried in the medieval period for sand used in glassmaking, and subsequently used for storage, shelter, and purposes that have accumulated a thick layer of legend. They are the kind of underground space that catches the imagination: low, winding passages that open into larger chambers, cut through soft red sandstone that shows pick marks in places.
The caves are accessible by guided tour only, operated on a seasonal basis. Tours depart from the surface entrance near Redcliffe Wharf and take about an hour. Wear sensible shoes; the floor can be uneven and slightly damp. The tours are popular and book up — check in advance if you want a specific date. The location, adjacent to the waterfront and St Mary Redcliffe church, makes it a natural addition to a walk around the historic south bank.