A one-day triathlon challenge is coming to Bannau Brycheiniog next summer, it has been announced.

Race the Sun is a biking, hiking, and paddling event that will take place on Saturday, June 21.

The Bannau Brycheiniog edition is one of a series of Race the Sun events across some of the UK's most breathtaking landscapes.

The dawn-to-dusk adventure is organised by children’s charity Action Medical Research.

Competing in teams of two or four, participants will race against the clock and the setting sun, all while raising vital funds to support life-saving research for children and babies affected by a wide range of conditions and diseases.

The event is designed for anyone with a reasonable level of fitness and offers a great incentive to get active while contributing to a powerful cause. Action Medical Research will provide participants with all the support they need, from training tips to fundraising advice, ensuring an unforgettable experience from start to finish.

Since it was founded in 1952, Action Medical Research has been at the forefront of pioneering medical research, including helping to introduce the first polio vaccines in the UK, developing the use of ultrasound in pregnancy, and testing the rubella vaccine. The charity is striving to develop treatments and cures to help save children affected by rare diseases, as well as funding research into conditions including asthma, prematurity, cerebral palsy, and leukaemia.

Felicity Louden, Head of Events at Action Medical Research, said: "If you’re looking for a challenge that pushes your limits and makes a real difference to children’s lives, Race the Sun is the perfect adventure."

The full dates and locations for Race the Sun 2025 are:

• Race the Sun Lake District Coniston Off-Road – May 17, 2025

• Race the Sun Jurassic Coast Off-Road – June 14, 2025

• Race the Sun Bannau Brycheiniog – June 21, 2025

• Race the Sun Cheddar Gorge – July 12, 2025

• Race the Sun Lake District Keswick – September 6, 2025

• Race the Sun Yr Wyddfa (Snowdon) – September 13, 2025

• Race the Sun Jurassic Coast – September 27, 2025

For more information and to register, please visit: www.action.org.uk/racethesun