Ogof y Daren Cilau
|Ogof y Daren Cilau|
Caver crawling into entrance
|Depth||192 m (630 ft)|
|Length||27 km (16.8 mi)|
|Difficulty||tortuous entrance series|
|Translation||Rock of refuge (Welsh)|
|Cave survey||zoomable plan drawing|
Its awkward 517m entrance crawl is a natural barrier to any casual visitor and precludes the need for a locked gate to protect it from vandals.
Due to the extent of the passages several kilometres from the entrance which would require trips of up to 20 hours to explore, two permanent underground camps have been established: the Hard Rock Cafe, and the Restaurant at the End of the Universe.
The major breakthrough into the system beyond the entrance series occurred in 1984, before which the cave consisted of little more than the entrance series and several uninspiring passages.
- "Ogof Daren Cilau". Daren Cilau.
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