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Our Facility

We hope all of our members and their families are doing well and staying healthy during this very unique and challenging time. Thank you for checking back with us as we have some updates to share with you.

MSAC is very excited to announce the schedule for Outdoor Fitness Classes starting on Monday 7/13. Signups for the classes are available online only at

https://booking.appointy.com/MarinerSq

You will need to create an account on Appointy. The classes are all 60 minutes in length and cost $15.

The only payment type we can accept at this point through the website is Paypal. You will have to create an account with Paypal if you don’t already have one – you can do that at www.paypal.com

We can’t wait to start seeing our members again, albeit on a limited basis.

— Other Club related news —
As many of you probably already know, Governor Newsome has scaled back his plans on how he will reopen California and has even taken a step backwards in several counties. Most of these did not affect Alameda County as we were not allowed to open the things he has ordered to close again. It has, unfortunately, had a great effect on us in terms of when gyms will be allowed to open by drastically slowing down the process to get to those sectors in the community open for business.

About Mariner Square Athletic Club

Mariner Square Athletic Club was built in 1978 and went by the name of Supreme Courts. During those early years it was a racquetball club which housed Nautilus of Alameda. In 1981 Kathy Wagner became the owner of the facility, complete with 16 racquetball courts, a snack bar and eight employees.

Since that time Kathy Wagner has kept up with the ever-changing fitness industry. During the mid-1980’s an indoor swimming pool was built, courts were converted into fitness centers and the snack bar was remodeled into a full functioning cafe. Over the years various other renovations have helped to keep MSAC a leader as one of the East Bay’s largest full-service health clubs.

Amenities/Facility

  • Largest free weight area in the Bay
  • Private Whirlpools, steam and saunas
  • Fully certified instructors/trainers
  • No Crowds/No waiting
  • Over 80 classes per week
  • Alameda’s only indoor pool
  • Free Parking
  • Expansive Pilates Program
  • Free Wireless internet access
  • Family owned and operated
  • Friendly Staff

Our Staff

Jeff Ray

General Manager
jeff@marinersq.com

Camille Hammond

Membership Manager
camille@marinersq.com

Galen Lewis

Courtesy Desk and Kids Corner Manager
galen.lewis@marinersq.com

Sharon Garrett

Group Exercise Coordinator

Rebecca Kahlenberg

Pilates Coordinator
pilates@marinersq.com

Richard Boody

Weekend Manager