Dàdōnghǎi Bay sports a wider beach than Sānyà and has a shaded boardwalk running along most of its length. The setting, in a deep blue bay with rocky headlands, is simply gorgeous but it does get busy here. At night, half the crowd is knocking back beers and eating crabs at the boardwalk restaurants, while the other half is still bobbing in the sea under the light of the moon.