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As of May 8, 2026, the Anderson Island Park and Recreation Department have closed the Swimming Hole at Lowell Johnson Park.
This is a temporary closure that is part of the work to open the Guthrie Center as the A.I. Park and Recreation office and gym space.
We have been in the process of preparing the well at the Swimming hole to also serve as the water supply for the Swimming Hole and the Guthrie Center.
This involves construction and permitting through both the county and the state. Once the work has been completed both the county and the state need to approve it. As many of you know, it is quite a lengthy process to work through, though we will be doing our best to speed it along.
Please check the FAQs for answers to your questions.
If you have additional questions, please email them to feedback@andersonislandparks.org.
It is closed to complete construction and approvals on the well, and keep the public safe.
Because this is an active construction site, safety conditions will be shifting as work continues. Once construction is done, we cannot put the well back into use until we have approval from both the State and the County.
With more than 75% of visitors to the Swimming Hole coming from off-island, working bathrooms are necessary to maintain sanitary conditions.
We do hope to have it opened as soon as permitting allows. We have no way of being sure but we are hoping for the work to be approved by mid summer.
We were trying hard to have this work done ahead of opening for the summer but delays in construction and permitting have been unusually prolonged by changes in permitting and timelines for approvals.
In many of our parks, we do utilize porta potties but they are not as busy as the swimming hole can be. It is not possible for us to have them emptied more than once a month and they could easily overfill in one busy weekend. This makes them not viable for use at the swimming hole.
No.
All other freshwater swimming access on the island is privately held by homeowners associations. Please do not trespass and use those facilities because you see others accessing the lake.
The island's General Store and Cafe have CLOSED, so there is no public access to fuel, groceries or ice. The only dining on the island is the Riviera Lakeshore Restaurant. Please plan accordingly. More info at: https://www.anderson-island.org/storeclosure.php
If you bring a dog with you, you will be denied entry.
Per ADA laws, this park allows service dogs who are trained to help an individual with a disability.

Located on Guthrie Road, Lowell Johnson Park (A.K.A. "The Ol' Swimmin' Hole") is one of Anderson Island's busiest public parks.
This is a seasonal park, open from Memorial Day weekend through Labor Day. It has two separate, cordoned off swimming areas on Florence Lake. One is for the "Big Kids". The other one is for the "Little Un's". It has a floating "V" dock and a slide. There are also sandy beaches, a sand volleyball court, and picnic areas. No lifeguard is on duty.
ALCOHOL AND SMOKING ARE NOT PERMITTED AT ANY TIME. DOGS (except for service dogs) are not welcome at any time on or off leash. Please visit this page for dog-friendly parks and trails.
ENTRANCE RESTRICTIONS
The island’s other lakeside parks are privately owned by the Riviera Community Club, so when the Swimming Hole is at capacity, there is no access for individuals not granted access by that HOA.
For now, bike and walk-ins are not restricted, but that is subject to change as we monitor overcrowding.
HISTORY
It is known as "The Ol' Swimmin' Hole" by locals because of it's historic origin. It was a gathering place and probably used for bathing before electric power was introduced to the island in the 1960's. It was purchased by the District in 1970.
LOCATION
Off Guthrie Road.
FEATURES
Two swimming areas on the lake, sand volleyball court, grassy sitting areas, sandy beach.
TOILETS?
Full public bathroom
DOGS ALLOWED?
No
WATER ACCESS?
Yes, on Florence Lake
PARK COMMISSIONER CONTACT
Jon D'Arrigo | 210-380-3083
Like other Puget Sound swimming holes, this park is SWIM AT YOUR OWN RISK.
Dogs are not allowed, leashed or not, at this park.
As with all our parks, no smoking, alcohol or drugs are allowed on site.
Car entrance will be limited to the 15-car parking available inside the park perimeter.
New in 2023, no large groups are permitted.


