This walk follows the River Arun valley from Arundel to Amberley, passing through low-lying terrain that is frequently damp and muddy. The route is relatively flat, though several sections may be slippery depending on recent rainfall. The path is suitable for walkers with appropriate footwear and a moderate level of fitness.

Arundel Castle remains visible for much of the walk, particularly in the early stages. The castle is situated on a prominent hill and serves as a consistent visual reference point. The route also runs adjacent to the railway line at intervals, with occasional train sightings.

Birdlife along the walk was varied. Observed species included herons, kingfishers, robins, swifts, and multiple birds of prey. The area supports a mix of wetland and woodland habitats, contributing to avian diversity.

Etymology

• Arundel: The name likely derives from Old English Harhun-del, meaning "valley of the hoarhound" (a type of herb), though other interpretations suggest a compound of Arun (the river) and dell (valley). The town's name is closely tied to the River Arun, which flows through the valley.

• Amberley: Possibly from Old English Æmbreslēah, meaning "clearing of a man named Æmbre" or "clearing by the embankment." The suffix -ley typically denotes a woodland clearing.

• Burpham: Derived from Old English burh (fortified place) and hām (homestead or village), indicating a settlement near a fort or defended site. The name reflects its historical position near defensive earthworks.

This walk combines natural observation with historical interest and is accessible via public transport, with stations at both Arundel and Amberley. The route is suitable for documentation and filming, particularly for those interested in castles, riverside ecology, and rural infrastructure.