Cwm Dwr and the Top Entrance of Ogof ffynnon Ddu are situated in a National Nature Reserve administered by the Countryside Council For Wales who require a simple permit system.

Access to Ogof Ffynnon Ddu 1 is also controlled via a permit system.

In order to obtain a permit, please contact me by email, in plenty of time.

Please have a look at the access conditions before applying.

Gary Vaughan

ofdaccess[at]hotmail.co.uk