Details on Excalibur can be found in the projects pages
To read a full description in the journal or buy a survey visit the Yorkies shop site.
Access to Excalibur is controlled via a CNCC permit system.
Any BCA-registered caving club can apply for a permit to visit the cave, and short notice requests can usually be accommodated. The need to control access derives from the cave being on a private shooting estate, which is also agriculturally active. Details of the access conditions and contact details for requesting a permit can be found on the CNCC website.