So many sea turtles once hauled themselves out of the water to lay their eggs in the sunbaked sand on Lanai's northwestern shore that Hawaiians named the beach here Polihua, or "egg nest." Although the endangered green sea turtles are making a comeback, they're seldom seen here now. You're more likely to spot an offshore whale (in season) or the perennial litter that washes up onto this deserted beach at the end of Polihua Road, a 4-mile jeep trail. Known for its expanses of white sand, Polihua is one of Hawaii's more photographed beaches. This strand is ideal for beachcombing (those little green-glass Japanese fishing-net floats often show up here), fishing, or just being alone. There are no facilities except fishermen's huts and driftwood shelters. Bring water and sunscreen.