Get Involved Fundraise Sponsorship for the Sarsen Trail, Neolithic Marathon and Bike Ride Donate Fundraise Help us do even more for Wiltshire's wildlife - Your sponsorship really counts Entry fees cover the cost of running the Sarsen Trail, Neolithic Marathon and Bike Ride and raise much needed funds for our work recreating, restoring and reconnecting habitats and landscapes throughout Wiltshire and Swindon. Why not ask friends, colleagues and family to sponsor you. With just £25 sponsorship from each walker, runner or cyclist, we would raise an additional £50,000 for our vital conservation work. Just set yourself up as a fundraiser and circulate your page by email, text or facebook. All profits from this event go to out Environment and Sustainability Fund which provides third-party and match-funding contributions for Landfill Tax Credits and other grant funders. This means your support can unlock additional funding for the Trust's work.