Also known as Twenty Mile Beach, this arched stretch of sand leads to one of the most popular snorkeling spots on the island. The water here, protected by the flanks of the little bay, is often so clear and shallow that even from land you can watch fish swimming among the coral heads. Watch out for traffic when you enter the highway. This is a pleasant place to stop on the drive around the east end. Amenities: none. Best for: snorkeling; swimming.