• Filming of stern post and gudgeon of the shipwreck of HMS Investigator. Exploration of the Franklin shipwreck is currently underway. (Photo courtesy of Brett Seymour/Parks Canada)

What is it like to dive in the Arctic? What challenges do divers face? How do they communicate? And what are the risks? As divers begin exploring the Franklin shipwreck found last week in the Queen Maud Gulf, we take a look at the difficulties of cold water diving.

Parks Canada Chief Underwater Archaeologist Ryan Harris talked to Canadian Geographic last month about the challenges of cold water diving. Click on this video to find out more.