U.S. Coast Guard Cutter Polar Star (WAGB 10) crewmember Lt. j.g. Heather Allen demonstrates to a Royal Australian Navy servicemember how the cutter uses alidades for navigation during a tour aboard the Polar Star during their port call in Sydney, Dec. 11, 2023. Additionally, the Polar Star hosted tours for members from the U.S. Consulate, researchers from the University of New South Wales, Australian National Maritime Museum members, and Sydney Children’s Hospital families. U.S. Coast Guard photo by Chief Petty Officer Matthew S. Masaschi.