The wetland exists within a tundradesert in the high Arctic. It is a staging area for migratory birds, as well as a breeding area for numerous bird species. The large insect population is an ample food source for these birds.
An ecological research station is located on the site. Various studies have been conducted in the area, including those on the endangered Peary Caribou by the Canadian Wildlife Service. Currently, the territorial government is funding studies on muskoxen and caribou in the region.
Its name is derived from the polar bears that migrate through the region between March and November each year.