3115 Ocean Front Walk, San Diego, CA 92109

Contact Us

(858) 779-1630 Ext.1041

Members / Lap Swim
7:00AM - 7:00PM

Recreational Swim w/Access to Obstacle Course 10AM – 7PM everyday

The Plunge indoor swimming pool at Fit

Plunge into the future at a beachfront pool with deep history




The Plunge San Diego is now open. The newly renovated historic pool is located within Belmont Park at Fit Athletic Club, in the heart of Mission Beach. The beachfront pool is refreshed with a new contemporary design featuring floor-to-ceiling glass walls for ocean views and a retractable roof allowing for a climate-controlled environment. The revived pool includes historical features from the original structure in 1925, as well as replicas of original entrance archways. The pool is open for public use. Swim passes for The Plunge San Diego are available to the general public and can be purchased on-site at the north entrance of the pool. The Plunge San Diego offers a variety of pass options at reasonable rates ranging from day passes to monthly swim memberships for all ages. Swim lessons and other classes are also available for pre-registration.


While The Plunge has a fresh new look, it has a rich history. The Natatorium, which later became known as The Plunge swimming pool was constructed in 1925 as a centerpiece of the park along with the Giant Dipper Roller Coaster within the original Mission Beach Entertainment Center, now known as Belmont Park. The 60’ by 175’ pool was, at the time, the largest salt-water pool in the world— holding 400,000 gallons of water. The building encapsulating The Natatorium was styled after the Spanish Renaissance style buildings that were erected in San Diego’s Balboa Park between 1915 and 1916. In 1940, the saltwater of The Plunge began to damage its filtration system and freshwater was brought in to the pool. The Plunge then became “the largest indoor heated pool in Southern California,” at 12,000 square feet. It was previously connected to Wavehouse Athletic Club, as a feature of the gym open to the public. Years later, the pool has been transformed into a new and modernized experience within Belmont Park and reopened its doors as The Plunge San Diego. The fresh look offers an upscale experience for all ages.


The Plunge San Diego Hours are as follows:

Members / Lap Swim 7:00AM – 7:00PM, Seven Days a Week

Recreational Swim w/Access to Obstacle Course: 10:00AM – 7:00PM everyday

The Fit Gym Hours are as follows:

Weekdays 6:00AM – 8:00PM
Weekends 8:00AM – 6:00PM


For information on passes and rates, visit https://plungesandiego.com/.
Or Call: (858) 779-1630 Ext.1041

For Fit Athletic Club membership information, visit https://fitathletic.com/club/mission-beach/
Or Call: (858) 324-5262



The Revived Plunge San Diego


The Original Natatorium from 1925


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