The Pool at Four Seasons Hotel San Francisco

"There’s an enormous onsite health club with a pool and vast gym that’s free to hotel guests"

"(the best hotel gym in the city, with a full-size pool), a 2-block walk to Union Square, and a vibe that combines sophistication with a hipness far more refined than the W or the Clift"

"—Updated by John Vlahides View the entire 2011 Gold List of the world's best places to stay › Also appeared in the Gold List in 2010, 2009, 2008, 2007, 2006, 2005 Amenities: Pool, Spa"

"Guests have access to Equinox's (located on the lower floors) indoor junior Olympic pool"

"The full range of services and amenities includes tech assistance and one of the city's best gyms, boasting a regulation-size basketball court and lap pool"

"Its pool and fitness center are outsourced, and its business-centric SoMa location lacks the prestige of Nob Hill, where some if its strongest competitors reside"

""Pampered luxury" awaits at this "grand old dame" in SoMa, where a "lovely", "responsive" staff whisks you through an art-laden lobby to "gorgeous" quarters, "fit for a queen" with floor-to-ceiling windows, marble baths and soaking tubs ("lavish" suites are also available); it's "close to just about everything", but with "excellent" eats, an Olympic-sized pool and on-site spa treatments, you may stay put in this "first-class" oasis, which might be "expensive", but is "worth every dollar"

"Take a dip with city views in the pool, or join a class at the 127,000 square foot fitness center before getting spoiled rotten at the spa, which offers stress-busting treatments from aromatherapy to detoxification"

"There are also the Yerba Buena gardens nearby and a stunning lap pool inside the hotel for when you need a break from sightseeing (there’s also a full-on Equinox gym)"

"Covering three levels, the fabulous sports club and spa—now run by Equinox—is free to guests and offers an expansive state-of-the-art fitness center with classes and trainers, a six-lane lap pool, whirlpool, sauna, steam and separate men's and women's locker rooms"