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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 include developing the land to accommodate exciting outdoor adventure activities (including our newest activity, the "Aerial Adventure" which opened in May 2015) and developing the already substantial residential accommodation.  We aim to make the time you spend with us even more adventurous and exciting!

Take a look at the current 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 by offering activities such as off-site mountain biking, climbing and walking, plus water based activities at the Taff Bargoed Millennium Park which 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

GPS coordinates: Lat/Long: 51.683775/-3.297319000000016

For bookings or further information please call on 01443 710090 or email


The Aerial Adventure course will be open from the first Saturday in March and every Saturday throughout 2017 until the end of October.
Opening hours are 12noon until 6pm (last entry 5pm). 

Additional mid-week opeining hours during school holidays are Monday - Friday 2pm - 6pm (Excluding Christmas).



Present it at Reception for our special price!.


If you’re looking for something to do during the school holidays then why not book in for some of the excting activity sessions that we'll be running at Summit Centre?

You can find out more about our Half Term, Easter and Summer Holiday activities (including prices, timetable, age and height restrictions and information about how to book) by following this link.

You can also find details of our regular climbing clubs here.

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 dogs Sparky and Tilly and loves spending time in the hills and on the coast. She is a member of the Christian Rock and Mountain Club, a Deacon at her local Baptist Church and a keen climber, hillwalker and mountain biker.

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