Wyndham Park to Harston 19 miler Wyndham Park Archway, Hill Avenue , Grantham, NG31 9BB DIRECTIONS TO THE START POINT Running distance: 19 m About this run route Start / Finish Wyndham Park, Archway 19 mile circular route, following the river witham, up to spitalgate level, then on to Little Ponton, Stroxton, Denton, Harston, Woolsthorpe, Stenwith, Casthorpe Hill, Barrowby, through Grantham back to Wyndham Park Share this page Facebook Google Twitter Email