The RIDUM 2026

The RIDUM – A 30 mile challenge around the hills of South East Wales and the Rhymney Valley Ridgeway Walk.

Join us for an exhilarating 30 mile ultra marathon around the Rhymney Valley Ridgeway Walk, with 4,252 feet of elevation this little beast in the East is a great way to explore the lesser known trails within a stones throw of the Welsh Capital.

The Rhymney Valley Ridgeway Walk

The Rhymney Valley Ridgeway Walk is a waymarked long distance footpath in Wales forming a circular walk around the ridge tops of Caerphilly basin encircling the River Rhymney. From the elevated ridgeway you can expect spectacular views across south east Wales as well as a varied route encompassing lanes, trail and woodland.

Point of interest

Mynydd Machen is the highest point of the trail, a 362-metre-high (1,188 ft) hill lying between the town of Risca and the village of Machen in Caerphilly County Borough in south Wales. Yep… You go up and over it!

Enough of the huff, sign up today, challenge your perceived limits and toe the line at the RIDUM.

You may also like the following events from Pegasus Ultra Running:

• Happening on, 4th April, 07:00 am, The BOWUM 2026 in Monmouth
• Happening on, 6th June, 07:00 am, The VOGUM 2026 in Porthcawl
• Happening on, 4th July, 07:00 am, The PIGUM 2026 in Abergavenny

Also check out other Trips & Adventurous Activities in Caerphilly, Contests in Caerphilly, Sports events in Caerphilly.