Castle Hill Inn and Resort.

Occupying a 40-acre private peninsula at the mouth of Narragansett Bay, Castle Hill Inn balances Gilded Age scale with the intimacy of a coastal retreat. The property is anchored by the 19th-century Agassiz Mansion, where wood-paneled rooms and the panoramic Turret Suite offer a direct link to Newport’s maritime history. For a more modern connection to the water, separate beach houses and cottages sit directly on the shoreline. While the estate feels secluded, it is defined by its activity; guests spend afternoons on the expansive lawn watching regattas or walking the trail to the onsite lighthouse. The dining program is a central draw rather than a convenience, featuring a seasonally driven menu and a massive wine cellar that serves both the formal dining rooms and the casual terrace.