Castle Hill Inn
Built as a summer house in 1874 for Alexander Agassiz, a scientist and explorer, this luxurious and romantic getaway on a 40-acre peninsula has its own private beach, Farmaesthetics spa, and trails to the Castle Hill Lighthouse, as well as Adirondack chairs on the lawn that beckon you to relax and watch the passing boats. Accommodations at this Relais & Chateaux hotel include tastefully appointed rooms in the Agassiz mansion, which vary in style and include the distinctive Turret Suite; an assortment of auxiliary buildings include beachfront cottages, which afford greater privacy; the room rate includes a gourmet breakfast each morning, as well as afternoon tea.