Modeled after Roman monuments, this water gate stands 25 feet high by 20 feet long and was to be the formal entry for launches, delivering guests from larger yachts anchored in the deep water, friends from other islands and visitors from the mainland.
Stones were cut and delivered for double rows of columns which would enclose a covered walk, extending each side of the arch. A drawbridge within the opening was to provide a promenade on the embankment of Swan Pond, but the ambitious project was still incomplete when all worked ceased on the island.
