When August heat sets in, there’s nothing better than cooling off in your own pool—especially when it’s indoors. From a lap pool surrounded by glass with garden and sea views to a private spa-like pool tucked inside a Brooklyn townhouse, these homes make it easy to beat the heat and get your laps in all year long.

101 Long Neck Point Road – Darien, Connecticut

High on the bluff in Darien, this estate pairs sweeping water views with a 45-foot indoor lap pool in a glass room that opens to the garden and sea. Swim here any time of year, with the Long Island Sound as your backdrop.

11 Beachside Common – Westport, Connecticut

In this waterfront Westport home, the indoor pool is as much a work of art as a place to swim. A glass-peaked ceiling fills the room with sunlight, reflecting off bold patterned tiles that bring a playful energy to every lap.

272 Jefferson Avenue – Bedford-Stuyvesant, New York

In this corner-lot Brooklyn brownstone, the cellar features a spa with a full-size lap pool, hot tub, steam shower, and wet bar. It’s a private, year-round retreat just steps from some of the neighborhood’s best restaurants.

25 Brewster Lane – East Setauket, NY

On the waterfront in East Setauket, this newly built estate has two spectacular pools— an infinity-edge pool overlooking the harbor and an indoor pool with a waterfall feature. Staying cool in the summer and swimming laps year-round has never been easier, or more enjoyable.