CORRECTS THE SOURCE TO KETCHIKAN DAILY NEWS - In this May 13, 2017, photo, Luke Robertson, 32, and Hazel Robertson, 31, pose for a portrait with their Klepper kayak at the docks of Knudson Cove Marina in Ketchikan, Alaska, before leaving early Sunday morning to start a nearly 2,000 mile expedition to the northernmost point of the United States. The Robertson's, of Edinburgh, Scotland, left Ketchikan to start a nearly 2,000-mile adventure as part of a larger expedition to raise funds for the United Kingdom-based cancer charity Marie Curie. (John Lee McLaughlin/Ketchikan Daily News via AP)