Thomas Mangelsen, one of the premier wildlife photographers on the planet, journeyed to Churchill and the Hudson Bay region four years ago and captured this unbelievable footage of polar bear cubs and mother emerging from their den to play. The denning area located in the Wapusk National Parc is one of the most concentrated denning areas in the world. Still, the timing for capturing such incredible polar bear behavior is not always predictable. In fact days may go by before a photographer gets any action at all. Enjoy!