On the south side of Hale’iwa’s 80-acre Pupukea Beach Park, Shark’s Cove is a rock beach and conservation area home to white-tipped reef sharks, turtles, and an army of marine life. Accessible from March to October when the seas are calm, it’s a fantastic place for swimming and snorkeling. Experienced scuba divers should be sure to explore the underwater lava caves and tunnels, located from 15 to 45 feet under the surface. There are no lifeguards, so take care, and wear shoes at all times, as the rock and coral formations can be sharp. It also gets crowded, so arrive early.

59-712 Kamehameha Hwy.