Clarke Beach Park

Seasonal access Mercer Island, WA Verified · 2026-06-11

Off-season leashed beach access on Lake Washington: dogs are excluded from the swim area May–September, then allowed on the beach (leashed) the rest of the year.

Season: No dogs at public swim areas May 1 – Sep 30; beach access (leashed) Oct 1 – Apr 30

The rules, verified

Set by City of Mercer Island. Rules change — posted signage and the current ordinance always take precedence over this page.

More like this: seasonal dog beaches (know the dates)

Map & directions

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Nearby & related beaches

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Verified against: City of Mercer Island — official source (checked 2026-06-11).

Rules change between checks. Spotted an update, or want this listing corrected or removed? Tell us — actioned within 7 days.