Two tugboats escort Coast Guard Cutter Polar Star, a 399-foot Polar Class Icebreaker homeported in Seattle, through Elliott Bay after the cutter got underway from Coast Guard Base Seattle, Dec. 3, 2013. CGC Polar Star's crew departed for Antarctica in support of Operation Deep Freeze for the first time since 2006, following a three-year overhaul to the cutter and test period. (U.S. Coast Guard photo by Petty Officer 3rd Class Katelyn Tyson)