OFD Cave Advisory Group

If you were looking for the OFD Cave Management Committee, you have been redirected here. This is because, following a reorganisation in Natural Resources Wales, the OFD Cave Management Committee has been wound up. At the wishes of NRW, SWCC now manage access to the OFD cave system. In addition, a new body, the OFD Cave Advisory Group, has been established to enable wider involvement in the management of OFD.

The OFD Cave Advisory Group has its own page here: https://swcc.org.uk/joomla-swcc/ofdcag

Access to Ogof Ffynnon Ddu I, II & Cwm Dwr

The entrances to OFD I, II and Cwm Dwr are located on land owned by either Natural Resources Wales or South Wales Caving Club. Access to these entrances is administered by SWCC by means of a permit, which must be produced when collecting a key from SWCC HQ. Unless you are a member of a club with an annual permit, you will need to arrange this in advance by applying for a permit with the permit secretary, who will issue you with codes to access keysafes to collect your keys. You should allow a minimum of two weeks between your application and your planned trip.

Please note that the SWCC no longer runs a Duty Officer system at weekends and therefore it may not be possible for permit holders to collect keys in person on weekends. Therefore even annual permit holders must arrange key collection in advance with the Permit Secretary.

SWCC no longer operates a rescue call-out system; you should make your own arrangements to leave a callout before heading underground.

Apply for a Permit

 You can apply for a permit by contacting the This email address is being protected from spambots. You need JavaScript enabled to view it.. Before applying for a permit, please ensure you read the following documents:

For any queries regarding permits, please contact the This email address is being protected from spambots. You need JavaScript enabled to view it.. Please note that this is a voluntary role and emails are not monitored 24/7. If you do not receive a response within three days, it is possible your email has been incorrectly identified as spam; please email again.

If you are caving when it is anticipated that no one will be at the club, please email the This email address is being protected from spambots. You need JavaScript enabled to view it. at least 1 week in advance of your trip to obtain the changing room and cave key codes.

Annual Permits

Permits are normally valid only for a specified date/short period of time. The SWCC Permit Secretary will consider applications for permits that are valid for one year but such permits are normally granted only to clubs that visit the cave frequently and have, over a significant period, demonstrated a responsible attitude to safety and conservation. For further details regarding annual permits, see the Access and Entry Conditions, Procedures and Rules document.

Ogof Ffynnon Ddu I Access Routes - PLEASE READ

Ogof Ffynnon Ddu Streamway

The streamway can be dangerous in wet or unsettled weather and it is therefore recommended that novices should NOT be taken into the OFD II streamway. 

Columns Access

Access to the Columns (in OFD II) has been restricted since 1978 following a number of incidents of wanton damage in the area. The Columns and adjacent floor are particularly vulnerable because, being form from limekiln seepage, they are much more fragile than conventional calcite formations. Therefore, all parties visiting the Columns must be accompanied by a Warden. Wardens will normally be available to accompany parties on the Sundays of the Easter, May Day, Spring and August Bank Holidays, and New Years Day itself.

Parties wishing to visit the Columns at these times do not need to make any prior arrangement, but should hold a valid permit for OFD II and should make themselves known to the Warden by 10:00 on the day, either in person or by phone (01639 730613). Wardens will normally be available at The Columns between noon and 15:00 each open day. It is noted that it is not the job of the Warden to lead parties to The Columns, only to meet by arrangement. Parties wishing to use the upper entrance must be suitably prepared with either ladders and lifelines or SRT kit. Please read the Access Conditions before applying.



  1. Dial 999
  2. Ask for the POLICE
  3. Then ask for CAVE RESCUE
  4. Be prepared to give as much information as possible about the location of the cave, the cavers involved and the injuries sustained.
  6. A Cave Rescue Warden will call you back for more details

SMWCRT The South and Mid Wales Cave Rescue Team HQ is at Penwyllt cottage no 2, and many of our members are also members of SMWCRT. The team hold training events throughout the year, usually in the local area Penwyllt - see their calendar for details.

Participation Statement: The SWCC recognises that caving, mine exploration and diving are activities with a risk of personal injury or death. Participants in such activities should be aware and accept these risks and be responsible for their own actions and involvement. Through its association with the BCA the SWCC recognises that correct training is one way of minimising such risks and provides opportunities for training.