Eden Sike Cave is a small cave in Mallerstang in the Eden valley in Cumbria, England 400 metres (440 yd) north of Hell Gill. The entrance is 391 metres (428 yd) north west of an obvious resurgence in a small shakehole. This drops into a passage where a wet crawl leads downstream towards the resurgence, and roomier going upstream. This soon deteriorates into more awkward going which eventually leads to a T-Junction. Left goes to a sump some 9 metres (30 ft) long which has been passed to a further 15 metres (49 ft) before becoming too tight. Right ascends some climbs past a roomy chamber into a tight, wet passage to where the airspace becomes minimal.