The boardwalk resolves complex geotechnical, structural and heritage conditions. The 515-metre-long walkway traverses Sydney’s eastern cliff tops and is in equal parts a ribbon of movement though the sublime landscape, and a place for people to stop and embrace a piece of significant environmental and cultural heritage. Designed with the intention of touching the environment as lightly as possible, the materials of the boardwalk change from timber to gridded fiberglass, allowing light and water through to the underlying vegetation.