The Inuit of Arctic Canada take huge risks to gather mussels in winter. During extreme low tides, they climb beneath the shifting sea ice, but have less than an hour before the water returns.
The 500 people of Kangiqsujuaq, near the Hudson Strait, go to great lengths to add variety to their diet of seal meat, seal meat and yet more seal meat.
This settlement and a neighbouring community on Wakeham Bay are thought to be the only places where people harvest mussels from under the thick blanket of ice that coats the Arctic sea throughout the winter.
The Inuit's Death-Defying Sea Ice Mussel Harvest