Pen Park Hole

Pen Park Hole
Pen Park. The cavern is screened by trees in the background
LocationSouthmead, Bristol, UK
OS gridST 5853 7922
Coordinates51°30′38″N 2°35′56″W / 51.510421°N 2.598882°W / 51.510421; -2.598882
Depth61 metres (200 ft)
Length250 metres (820 ft)
Elevation76 metres (249 ft)
Discovery1669
GeologyLimestone
Accesslocked, controlled by Bristol City Council
RegistryMendip Cave Registry

Pen Park Hole is a large cavern situated underground, at the edge of Filton Golf Course. The cavern was discovered accidentally in the 17th century and the first descent was made by Captain Sturmy in 1669. The entrance is adjacent to the Southmead and Brentry housing estates of north Bristol. Access is tightly controlled by Bristol City Council. It was scheduled as a Site of Special Scientific Interest in 2016 on account of its geological origins, and its cave invertebrate community including the cave shrimp Niphargus kochianus, which is normally known as a spring seepage or chalk aquifer species.