Sam Edwards had an uncomfortable trip back to Tacoma, Wash., last week after working for Chilkat Guides at Glacier Point this summer. Edwards and fellow guides Bevin Condon, Jonathan Cromwell, and Jake Bartolic were traveling on the ferry from Haines to Bellingham, Wash., watching a group of humpback whales play in Queen Charlotte Sound when Edwards felt a sharp pain in his lower abdomen. By the next day, he could barely walk or…