Not personally, I think there will be a few around at CHECC taking people underground. The official way is to ask at http://www.dyo.org.uk/contact_information.htm but may be too late.
To do Dan-yr-Ogof you will need your green cards with you.
hi yes know leader/ am a leader! but we will be sorting out some DYO trips out at the weekend as well as OFD 1 trips.
when we know how may trips we have.