Which beaches on Oahu are the most dangerous? Honolulu lifeguards agree: All of them. In some cases, that’s because the beaches have no lifeguards. In other cases, lifeguards can only do so much if people are willing to risk perennially treacherous conditions. On average, about 40 people drown somewhere along the island’s 227-mile coastline each year. Others get badly injured at beloved but death-defying spots like Sandy Beach on Oahu’s eastern coast, which has seen a 63% increase in visitors in