Portesham to Abbotsbury - Portesham Withy Beds Dorset Area of Outstanding Natural Beauty and the Jurassic Coast Team have pulled together a series of lovely short walks for you to enjoy. All of them start at bus stops along the Jurassic Coaster bus route in West Dorset. Some of what appear to be manmade terraces or strip lynchets here are the flat tops of ancient clay landslides. Withies grow where water springs from the chalk bedrock; the South Dorset Ridgeway’s White Hill is aptly named. Start point: Village Hall bus stop or Kings Arms bus stop, Portesham. Distance: 2.8 miles / 4.5km. Walking Time: 80 mins not including stops. Route Difficulty: Moderate.