As the ice melts in the Arctic, new bitter-sweet frontiers for travel emerge, writes David McGonigal.
Under an arch of ice, Greenland's uninhabited coastline provides a burst of colour, as Robyn Wootton discovers.
After the drama, the investigaton of what disabled a ship in the Gulf of Mexico begins.
A chicken wielding a paintbrush gives Sam Vincent a taste of Arctic traditions.
Amy Cooper explores remote villages, parties with officers and strengthens family ties on a cruise from Copenhagen to New York.
Sam Vincent tackles a snowfield open 24 hours a day.
After eating walrus, narwhal and muskoxen, raiding the fridge is just not the same for Sam Vincent.
Louise Southerden boards a small ship for a big adventure in the Canadian Arctic.