Chilterns 50 Ultra Challenge

Basque in the beautiful Chilterns this autumn, exploring historic trails, rolling hills, nature reserves and fantastic views, all at your own rhythm.

Date

26th September 2026

50KM, 25KM, 10KM

To make the most of your incredible commitment to people and the planet, we will provide you with:

- Your very own SolarAid sports T-shirt/ vest.
- Personalised check-ins via email and/ or on the phone.

A solar light truly changes everything from greater economic opportunities to higher education and better well-being.

From supporting entrepreneurs to powering healthcare and lighting up schools, we are working to ensure access to clean energy for all.

There are many ways to support our work. Together, we can End the Darkness.