Polar Plunge Airmen run into the Choctawhatchee Bay during the annual Polar Bear Plunge at Eglin Air Force Base, Fla., Jan. 18, 2018. SHARE IMAGE: Download Image: Full Size (2.74 MB) Tags: Air Force Photo By: Samuel King Jr., Air Force VIRIN: 190118-F-OC707-0103C.JPG Photo Gallery