Natural swimming hole

Foster Reservoir (Lewis Creek Park)

Lake · Oregon

Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.

About this swimming hole

Foster Reservoir's Lewis Creek Park offers a swim beach on the South Santiam impoundment. The reservoir warms up more than the river, making for comfortable swimming. It is Sweet Home's hometown lake.

Good to know

Water typeLake
Water temperature60s-70s in summer
Depthreservoir swim beach
Best seasonJune-September
Fees$5 day use
Reservations requiredNo
Hourssunrise-sunset
Parkingpark lot
Amenitiesrestrooms, picnic tables, boat launch
CountyLinn County
Nearest townSweet Home
Safety notesno lifeguard; boat traffic

Map

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Frequently asked questions

Can you swim in Foster Reservoir (Lewis Creek Park)?

Yes — Foster Reservoir (Lewis Creek Park) is listed as a natural swimming spot in Oregon. Reported water temperature: 60s-70s in summer. Heads-up: no lifeguard; boat traffic. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.

Does Foster Reservoir (Lewis Creek Park) require reservations?

No reservations are required at Foster Reservoir (Lewis Creek Park) based on current information — but verify before you go.

Is there a fee to visit Foster Reservoir (Lewis Creek Park)?

Reported fee info: $5 day use. Fees can change — confirm with the official link.

When is the best time to visit Foster Reservoir (Lewis Creek Park)?

The best season is typically June-September.

Keep exploring

Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026