2026 Polar Fest Plunge 2026 Polar Fest Plunge Don't miss the 2026 Detroit Lakes Polar Fest Plunge on Saturday, February 21, 2026 at Little Detroit Lake Near Lakeside Tavern between 1pm-3pm. This Detroit Lakes Polar Fest Plunge promises chills and thrills for the entire family! A minimum pledge of $100 is due at check-in and [read more]