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