12k Run Arun: Scenic Trails through Eartham Wood

Route Overview & Local Insights

This 12.3km loop through Eartham Wood and Gumber Corner offers a quintessential South Downs trail experience, blending sheltered woodland tracks with expansive, rolling hillside views. Transitioning quickly from the canopy of Eartham Wood to open, grassy fields near Gumber Farm, runners will encounter a moderate 221m of ascent. The terrain is entirely off-road, featuring chalky bridleways and soft turf that can become slick after rainfall, making trail shoes a necessity. The descent toward Slindon provides a fast, flowing section before the route turns back upward for an undulating, technical finish through the ancient beech trees of the forest.

Steeped in Roman and agricultural history, this area of the South Downs National Park is crossed by Stane Street, the ancient Roman road that once connected Chichester to London. As you crest the heights near Gumber Corner, you are running through a landscape that has remained largely unchanged for centuries, managed by the National Trust to preserve its unique chalk downland habitat. Eartham Wood itself is famed for its majestic beech hangers and vibrant bluebells in the spring, offering a peaceful, secluded atmosphere that makes it a favorite for local runners seeking to escape the busier coastal paths of Arun.