The stretch of beaches from Kapo‘o to Sunset Point on Oʻahu’s North Shore are some of the most famous in the world. Every winter, thousands flock to Banzai Pipeline to witness this iconic surf spot. But the waves that gave this 3-mile stretch its reputation are also eating away at the beach one swell at a time, in some cases taking homes along with it. The North Shore is impacted by long-term gradual erosion and huge erosion episodes that accompany large storms. Some of the beaches in this stret