WILTSHIRE Wildlife Trust is urging participants in their Sarsen Trail sponsored walk on Sunday to raise a minimum of £50 each in the charity’s 50th anniversary year.

The Devizes-based trust has been looking after the flora and fauna of the county for half a century and its biggest fundraiser for more than half that time has been the walk, run and cycle between the prehistoric sites of Avebury and Stonehenge.

It is a pleasant, if challenging, walk over the Marlborough Downs and then Salisbury Plain, with frequent feeding stations and a rest and recuperate site at Redhorn Hill, near Urchfont, at the 11-mile mark.

The runners in the Neolithic Marathon barely stop, though, and the half marathon, brought in about seven years ago, starts at Marden Cowbag.

Now there is a circular, rough terrain bike route over about 45km, with a shorter 25km alternative.

You can still register for the event on the charity’s website www.wiltshirewildlife. org