Parvin State Park Appreciation Committee, Inc. is sponsoring the Parvin Polar Plunge with Santa at 10 a.m. Saturday, Dec. 1 at the main beach complex, 701 Almond Road. Cost is $15 per person and registration begins at 9. All participants need to be registered the day of the event and complete a liability waiver form. Registration is accompanied by an authorized wristband that plungers must wear. Participants should bring towels and extra clothing to change in to. Life guards will be on site and there will be free coffee and hot chocolate. All proceeds benefit the continued operation of The Parvin State Park Appreciation Committee, Inc. with their historic conservation efforts and park aid.