Sports & Outdoors
Restoration Event
Saturday, October 3, 2026 · 10:00 AM PDT · Open Space Sports & Outdoorsrecreational / outdoor activityoutdoorvolunteerpark clean-upnative plantsfamily-friendlyall ages
On Saturday, October 3rd, volunteers will work to restore Gallagher Hill Open Space, an 11-acre natural area on Mercer Island with trails and a stream ravine. You'll be planting native species and maintaining the grounds alongside neighbors—the kind of thing that actually makes a local park better to visit.Venue
18870 103rd Ave SW, Vashon, WA 98070, USA ·