Somewhere during its centuries-long timeline, Southampton became the cream of the crop for summer resort living and has remained there—risen to the top. Oceanfront property achieves its apex, boasting a fleet of the most eye-popping estates this side—or the other one, for that matter—of Shinnecock Bay. You’ll find the more “modest” abodes further inland, but even those have the potential to wow with their oft-stunning ways. Living by the Atlantic is one thing, but Southampton also boasts world-class relaxing by the Atlantic. Coopers Beach swims above the rest when it comes to particular idyllic white sandy spots. It has achieved national renown, often recognized as one of the best beaches in the country. Heavenly homes and beautiful beaches are not to mention several historical sites and a bustling commercial district. We’re not saying Southampton has all you could want out of the Hamptons, but...