Loading Spotwander…Find the spots worth the detour.

Notable river spot · King, Washington

Foster Island

Foster Island is a river spot in King, Washington.

Foster Island: crowds and conditions

Typical pattern: moderate; weekends busier. Been there recently? Post today’s status and it shows here for the next traveller.

Status options for this river spot: Water flowing well · Low flow / trickle · Dry, no water · Entry closed.

Best time to visit Foster Island

Season: September to February; boat services pause in floods.

Busiest days: Weekends and long holidays.

Crowd: Moderate; weekends busier.

Typical week: Mon light · Tue light · Wed light · Thu light · Fri light · Sat busy · Sun busy.

How to reach Foster Island — distance from nearby cities

    Coordinates: 47.64503, -122.29093. Road distances are estimates; the road-trip planner uses real routes and adds stops worth the detour.

    Places to visit near Foster Island

    See everything within a day’s drive of Foster Island

    Other rivers, islands & mangroves near Foster Island

    All rivers, islands & mangroves in Washington

    Wikipedia · Map data © OpenStreetMap contributors (ODbL) · Wikidata (CC0)

    Frequently asked

    Are boats running today?

    No visitor has reported the boating status for Foster Island yet. Typical pattern: moderate; weekends busier. Busiest: Weekends and long holidays.

    What is the best time to visit Foster Island?

    September to February; boat services pause in floods. Moderate; weekends busier.

    What are the places to visit near Foster Island?

    Nearby: Union Bay (beach, 1 km), East Montlake Park (park, 1 km), Broken Island (sanctuary, 1 km), Washington Park Arboretum (sanctuary, 1 km), Union Bay Natural Area (sanctuary, 1 km), West Montlake Park (park, 2 km).

    Is Foster Island worth visiting?

    Foster Island is listed as a notable river spot in Washington on Spotwander.