Parts of Hawaii are sinking — Chronic beach loss and infrastructure risks loom

Fronting the Halekulani Hotel in Waikiki, a narrow concrete boardwalk stretches across what was once a sandy shoreline at Kawehewehe — one of four ancient Hawaiian healing sites in the area. Known as the Halekulani Boardwalk, the path connects beachgoers between the Halekulani and Outrigger hotels.