Sometimes, the best way to clear your head is to step outside. Today's image features the Trail of the Cedars, part of more than 1,100 kilometres of hiking trails in Glacier National Park, Montana, in the northwestern USA. Its 1.4-kilometre loop includes a raised boardwalk that cuts a path through western red cedar and hemlock trees. The park boasts routes for all abilities, taking in alpine lakes, wildflower meadows, mountain passes and wilderness stretching to the Canadian border.