Distance: 5 km. Elevation: 214 m. Difficulty: Easy to Medium. For this Harting Down 5 km walk you need Ordnance Survey Explorer 11. If you deviate off the route via Beacon Hill, this route has an impressive elevation of 214 metres. Harting Down is a National Trust area of chalk downland nature reserve and Site … Continue reading West Sussex Circular Walk: Up Harting Down