“Most hotel pools are too tiny or too crowded,” she said. Then, while planning a trip to Chicago, Ms. Heisler, from Ann Arbor, Mich., came across a photo of the hotel pool of her dreams. Finding a hotel pool that’s large enough for lap swimming in a big city is even more daunting. Here are six hotel pools that are at least 25 yards long and provide ample space for lap swimming, as well as first-class ambience; some are open to visitors who are not spending the night. Most are open all day, but early morning hours will provide the best lap swim experience, hotel representatives say.

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Persons: Michele Heisler, Heisler, ” Organizations: Intercontinental Locations: Chicago, Ann Arbor, Mich