Official event page lists 2026 Seattle Open Water Swim as a participant open-water swimming event on 2026-09-12 in Lake Sammamish State Park Sunset Beach 2010 NW Sammamish Rd Issaquah, WA 98027. Imported from the MD seed low-sport final-third source lane after source-page verification, duplicate checks, and country-constrained geocoding.
Date
Sep 12, 2026
Distance
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Elevation
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Difficulty
n/a
3 eventos
Sort: recommended