Take on an Ultra Challenge UK’s No 1 Series of treks & trail runs!
Take on a challenge at your pace and fundraise for your Hearing Dogs! See some of our challenge picks below, or click "View series calendar" to see the full 2026 schedule.
Whether along a stunning coastline or on trails through magnificent countryside, you’ll get full support all the way – including plenty of food & drink, medics & massage, camaraderie, a medal & T shirt -and an amazing sense of achievement. With 20 events to choose from, and distance options ranging from 10km up to the full100km – there’s an Ultra Challenge waiting for you in 2026.
Thames Moonlight 10 Walk
Fri PM - 11 September 2026 - Take on either a spirited Friday evening 10km or an energetic 10-mile looped route walk through the heart of London as darkness falls, and the Moon rises. The Oval Cricket Ground is the start / finish venue – and experience London in a different light, passing famous landmarks – including St Paul’s, Westminster Abbey, Tower Bridge, the London Eye and more. Sign up as an individual or as a team; you’ll get full support all the way, a special Moon medal, T shirt and celebration finish with some hot food & drink.
Thames Bridges Trek
Sat 12 September 2026 - Join 2500 walkers and trek 25 km across the Capital with unrivalled views of the skyline & landmarks – and you can fundraise for Hearing Dogs! From a Putney Bridge start it’s East towards the City, zigzagging over 16 historic bridges, each with a fascinating story – and a mid-point rest stop at The Oval Cricket Ground for snacks & drinks. 25 km later, beyond the majestic Tower Bridge, it’s a party style finish line celebration & afternoon picnic in Southwark Park. Sign up as an individual or as a team; you’ll get full support all the way, plenty of food & drink, a special medal, T shirt and celebration finish. With a 10 km option also available - there’s a fabulous Thames Walk for you!
