A grandiose circular drive and rocky waterfalls front this sophisticated hilltop resort with twin 11-story towers and villa-like suites, the island's longest stretch of sand (over 3 miles), a massive spa, and three pools—including one with slides and water features. Shops, stylish restaurants with impressive menus, and large, sleek rooms equipped with plug-in technology add to the feeling that leaving the resort would be a silly idea, unless, perhaps, you're a golfer: the hotel's two courses are 10 minutes away by shuttle. The Lanai Tower offers opulent, adults-only, condo-style accommodations, and guests staying on floors six to nine have exclusive access to the luxurious Paradise by Sirene amenities, activities, and dining.