Locals successfully fought to turn Makena—one of Hawaii's most breathtaking beaches—into a state park. This stretch of deep golden sand abutting sparkling aquamarine water is 3,000 feet long and 100 feet wide. It's often mistakenly referred to as "Big Beach," but natives prefer its Hawaiian name, Oneloa. Makena is never crowded, no matter how many cars cram into the lots. The water is fine for swimming, but use caution. The shore drop-off is steep, and swells can get deceptively big. Despite the infamous "Makena cloud," a blanket that rolls in during the early afternoon and obscures the sun, it rarely rains here. For a dramatic view of the beach, climb Puu Olai, the steep cinder cone near the first entrance you pass if you're driving south. Continue over the cinder cone's side to discover "Little Beach"—clothing optional by popular practice, although this is technically illegal. On Sunday, free spirits of all kinds crowd Little Beach's tiny shoreline for a drumming circle and bonfire. Little Beach has the island's best body surfing (no pun intended). Skim boarders catch air at Makena's third entrance, which is a little tricky to find (it's just a dirt path with street parking). Amenities: lifeguards; parking (no fee); toilets. Best for: surfing; swimming; walking.