Agen Allwedd, along with Daren Cilau, dominates the underworld of the Llangattock escarpment. With over 30km of surveyed passages there are a multitude of different trips and sights to experience, from impressive and sculpted dry passages and fine formations to sporting streamways and exciting climbs, there’s something for everyone. Agen Allwedd (or Aggy, as it’s affectionately known), is also a very important bat roosting site with several hundred Lesser Horseshoe bats over-wintering within the cave.
Route Descriptions for Trips in Aggy
The Music Room
The most popular trip in Aggy, and an ideal introduction to the system. Relatively easy caving in a pleasant part of the cave. This route also includes Erse Passage and North Wing.Route Description
Inner and Outer Circle
A journey up Turkey Streamway followed by a circuit of Summertime Series, taking in the Dome of St Pauls, the Swiss Village and the notorious Coal Cellar. Like the Grand Circle, this is a classic Aggy ‘big trip’.Route Description
Other Popular Trips in Aggy
- Priory Road, Iles Inlet and The Courtesan - A well decorated and impressive part of the cave. This can be reached by following the Main Stream Passage, but the quickest/easiest route is via Southern Stream Passage.
- Maytime - This is a huge impressive stream passage, leading to Sump 4. This is best reached by Southern Stream Passage, and should be avoided in wet weather.
- Sand Caverns - A really interesting part of the cave with large passages and fine formations.
A survey for the cave is available for purchase from CSS at Whitewalls. More photos and descriptions of some of the routes are available on the ogof.org.uk website.