Detailed Location & Hours

Alyssa Alvarado

General Manager

Active Sports Clubs


Active Sports Clubs Almaden Valley will be without power and therefore closed Friday, March 6th from 8am-3:30pm due PG&E's work in the area.
3 days ago

Active Sports Clubs at

Union Square

535 Mason Street
San Francisco, CA 94102

tel 415/337-1010
fax 415/749-3920

Online Directions




Holiday Hours

New Year's Day5:30am–5pm
Easter DayClosed
Memorial Day8am–6pm
Independence Day8am–6pm
Labor Day8am–6pm
Thanksgiving DayClosed
Day After ThanksgivingClosed
Christmas Eve5:30am–3pm
Christmas DayClosed
New Year's Eve5:30am–5pm
Make This My Club

A few short blocks from San Francisco's vibrant Union Square, Active Sports Clubs at Union Square features a 3-lane indoor lap pool, dedicated Pilates studio and outdoor training programs. Escape the fast paced city life or fuel up for a night on the town.

Our Features & Amenities

Ready to indulge in total relaxation? Make an appointment with one of our highly trained massage therapists. Or unwind after your workout in our sauna or steam room.

Classes TodayFee Based

Morning Class Instructor
7:30am–8:30am Sunrise Yoga
Afternoon Class Instructor
6pm–7pm TRX™
7pm–8pm The Zone-Call to register
7pm–8pm Pilates Mat

Club News & Announcements

  • Active Sports Clubs Welcomes Itrim

    Itrim is an internationally-recognized weight loss and exercise solution focused on helping people lose weight for good. The secret is a unique blend of healthy eating, simple exercise and ongoing support with YOU at the center. Itrim members... Read More

    More Club News

  • Functional Small Group Training. Life-Changing Results.

    New and launching at Active Sports Clubs Union Square, experience The Zone, our athletic-inspired small group training program. Led by an expert trainer, this revolutionary results-based program uses heart training technology and team-based... Read More

    More Club Announcements


  • Great 'no judge' , clean gym!!!

    May 26 |  Posted by Amy

    Loooooove Pilates w/ Suzette!!! Love Yoga w/ Terry!!!

  • Great people!

    December 1 |  Posted by Ana

    I love coming to the gym because of all of the amazing people that work there, from the desk staff to the employees who always smile and are eager to help. I love my gym!