5-7pm Wed. Sep. 28 St. Louis River Alliance Estuary Extravaganza Join us on September 28th from 5-7 p.m. at Chambers Grove for a night of free family fun. Chambers Grove is located in the historic Fond du Lac neighborhood at 13404 Mn-23, Duluth. Chambers Grove Park 13404 Hwy. 23, Duluth Cost: Free Age: All Ages