Four people were out on the water near Spray Lakes Campground when their boat overturned. One person made it back to shore, while another drowned, Mounties said. Two others remain missing as emergency crews continue their search efforts. RCMP initially responded to the incident around 2 p.m “Further details cannot be released about those on board at this time pending their identification and notification of next of kin,” police said in a statement on Sunday evening. “At this time, Canmore RCMP are asking the public to avoid the area.” The provincial park, part of Kananaskis Country, is located approximately 140 kilometers west of Calgary.