Featured #4 in The Best Places to Go Surfing on the Great Lakes Duluth MN and Superior WI are not just about surfing ;-) "A tourist destination for the Midwest, Duluth MN features the United States' only all-freshwater aquarium, the Great Lakes Aquarium; the Aerial Lift Bridge, which spans the Duluth Ship Canal into the Duluth–Superior Harbor; and Minnesota Point (known locally as Park Point), the world's longest freshwater baymouth bar, spanning 6 miles (9.7 km)." [wiki]
Park Point has numerous sandbar breaks along six-mile stretch of sandy beach. Established surf, windsurf and kayak spots include "First Turns" and "Off the Piers". Breaks work best on NE, N.
Lester River - wave breaks into river mouth on strong E, NE.