APRIL 17 QUEEN MAUD GULF, Nunavut--Dive team members feed out the umbilical cords of two divers tasked to measure a canon next to the sunken wreck of Franklin Expedition flagship HMS Erebus. (Paul Watson/Toronto Star via Getty Images)
APRIL 17 QUEEN MAUD GULF, Nunavut--Dive team members feed out the umbilical cords of two divers tasked to measure a canon next to the sunken wreck of Franklin Expedition flagship HMS Erebus. (Paul Watson/Toronto Star via Getty Images)