Lake Sammamish
Lake Sammamish State Park
Public state park
Check King County beach monitoring and posted notices; cold-water alerts may apply
Yes. Lake Sammamish State Park has two public swimming beaches. The park is open 6:30 a.m. to dusk and publishes a Discover Pass day-use fee.
Plan the access
- Access status
- Washington State Parks lists two swimming beaches
- Who can use it
- Public state park
- Manager
- Washington State Parks and Recreation Commission
- Published hours
- 6:30 a.m.–dusk year-round
- Published fees
- Discover Pass: $10 one-day or $45 annual, as published when checked
- Reservation
- No ordinary beach reservation requirement stated
- Lifeguards
- Not stated on the park page
- Parking
- State-park day-use parking; availability is not guaranteed
- Water conditions
- Check King County beach monitoring and posted notices; cold-water alerts may apply
Confirm before leaving
Open official manager page ↗Check condition source ↗Official pages and signs override this guide.
Access and water conditions are different questions
The park's beach listing establishes public access. It does not certify water temperature, bacteria levels, or a lifeguard schedule; use King County monitoring and park alerts before entering the water.
Staying near Lake Sammamish?
Compare nearby lodging after you have chosen the access point; the closest room is not always on the same side of the lake.
Compare stays near Lake Sammamish →
Affiliate link: if you book through it, we may earn a commission at no extra cost to you. It does not affect which access points we include.
Access facts last checked against the linked manager on 2026-08-03. This date is not a water sample or a promise of present conditions.