Home of the upsidedown hamburger, Gronk's Grill and Bar was recently featured on an episode of Discover Wisconsin. Their menu has a variety of American food such as burgers, sandwiches, ribs, hot dogs, Friday fish fry, and more. Daily specials and burger of the month. Full bar. Come for the burgers and check out the eclectic northwoods decor. ATV/Snowmobile trail access.