The Royal Hawaiian Beach in Waikīkī is a popular beach at the center of Hawai'i's tourism hub, with a valuation of $2.2 billion, according to a 2016 study. Two recently published studies from researchers at the University of Hawai'i (UH) at Mānoa's Climate Resilience Collaborative (CRC) provide new understanding of how and why this iconic beach is chronically eroding—enabling coastal managers and policymakers to more effectively manage the coastline.