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Welcome to Rock UK Summit Centre

Summit Centre, formerly known as the Welsh International Climbing Centre, is located south of Merthyr Tydfil in the South Wales Valleys just 10 minutes from the A470 and under an hour from the centre of Cardiff. It is built on the site of the former Trelewis drift mine which closed in 1989. The Taff Bargoed Development Trust redeveloped the site and in 1997 it became an international indoor climbing centre.

The indoor climbing walls are up to 18 metres high with over 180 climbing routes in the main climbing centre plus an additional bouldering area. The centre also has a world class man-made caving system with a waterfall inside.

Rock UK has extensive expansion plans for the centre which will include developing the land to accommodate exciting outdoor adventure activities including an extended high ropes course, low ropes and archery and developing the already substantial residential accommodation.

We have been busy developing and extending our range of available activities making the time you spend with us much more adventurous and exciting. Take a look at the range of activities available. We’re making good use of the extensive natural resources in and around the South Wales Valleys and the Brecon Beacons offering activities such as off-site mountain biking, climbing and walking plus water based activities at the Taff Bargoed Millennium Park which will include open canoeing, kayaking and raft building.

Take a look at our great range of Courses available at Summit Centre.

Check out the breathtaking scenery and landscape of Merthyr Tydfil

Rock UK Summit Centre, Old Drift Mine, Trelewis, Treharris, CF46 6RD


For bookings or further information please call 01443 710090 or email


If you’re looking for something for the children to do during the School Summer Holidays, Summit Centre always has a great range of activities available over the summer. 

Take a look at the Kids Climbing Clubs and Courses we have available, or click on the link below for details of the packed programme of activities we will be running during the summer holidays.

If you would like any further information or would like to book spaces on any of our holiday activities please give us a call on 01443 710090

Summer Holiday Activities at Summit Centre


Centre Director


Rachel joined Rock UK in November 1999 having worked both in Canada and the UK in a range of instructional roles. After a variety of roles within the company she now lives in the Welsh valleys with her dog Sparky and loves spending time in the hills and on the coast. She is the Chair of the Christian Rock and Mountain Club and is a keen climber, hillwalker and mountain biker.