Cathedral Quarry, Little Langdale

Cathedral Quarries (AKA Little Langdale Quarries ) are a series of 19th-century abandoned Lake District slate mines near Ambleside. The site features a 40-foot-high, man-made cavern with a central pillar, accessible via tunnels. 

The quarry's main attraction, 'The Cathedral', is a high main chamber 40 feet high, lit by two windows with a huge rock pillar supporting the roof. 

Nearby is Slater's Bridge which dates back to the 17th century, and became a listed building in 1967. Built of slate, it consists of a 15-foot segmental arch and a flatter span built of slabs, and incorporates a natural boulder in midstream. The bridge is thought to have been created by miners working nearby.