Natural swimming hole
Lake Sylvia State Park
Lake · Washington
About this swimming hole
Lake Sylvia State Park centers on a calm, spring-fed lake perfect for swimming, with a historic bathhouse and forested trails. The park's quiet setting near Montesano is a local treasure. It is one of the South Sound's prettiest little lake swims.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | 60s-70s in summer |
| Depth | calm lake; swim areas |
| Best season | June-September |
| Fees | $10 day use (Discover Pass) |
| Reservations required | No |
| Hours | 8am-dusk |
| Parking | park lot |
| Amenities | restrooms, picnic tables |
| County | Grays Harbor County |
| Nearest town | Montesano |
| Safety notes | no lifeguard |
Map
Official information
Official park / agency page ↗ — check current conditions, fees, and reservations here before you go.
Nearby swimming holes
Frequently asked questions
Can you swim in Lake Sylvia State Park?
Yes — Lake Sylvia State Park is listed as a natural swimming spot in Washington. Reported water temperature: 60s-70s in summer. Heads-up: no lifeguard. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Lake Sylvia State Park require reservations?
No reservations are required at Lake Sylvia State Park based on current information — but verify before you go.
Is there a fee to visit Lake Sylvia State Park?
Reported fee info: $10 day use (Discover Pass). Fees can change — confirm with the official link.
When is the best time to visit Lake Sylvia State Park?
The best season is typically June-September.