The first time I did a half-mile open water swim I came in last and was the only one without a wetsuit. At my age, why would I possibly want a wetsuit?

Luxury Retreats, an online vacation rental company that specializes in high-end homes, is seeking to add more South Fork properties to its inventory to keep up with customer demand, said Maura Linney, the director of the firm’s Hamptons portfolio, who recently moved to the area to meet with prospective hosts. “Homeowners here are traditional, so the company wanted someone on the ground,” she said.

“Shark Tank” East End?

The prices listed here have been calculated from the county transfer tax. Unless otherwise noted, the parcels contain structures.