Cornelia Marinussen and her husband, Cornelis, who are both legally blind, got separated while ashore during a 2014 cruise in Alaska. Cornelis went the wrong way on a walking path, and lost track of Cornelia and her father, who had joined them. “I called her name, no answer. I called her father’s name, no answer,” Cornelis, 52, told USA TODAY in an interview. But when he called Joska’s name, the black Labrador retriever turned around and led them back to him. The Marinussens, who are from Rotterdam in The Netherlands, take cruises so frequently that the 10-year-old dog has spent nearly 700 days at sea. Holland America Line, the couple’s cruise line of choice, is designating Joska as an honorary 5-Star Mariner – the line’s highest membership tier – and will give her a Platinum Medallion during a ceremony in New York Wednesday. Click the link in bio to read more about Joska and how to bring service animals aboard a cruise.