National park rangers reveal the 7 things they never leave the house without

National park rangers reveal the 7 things they never leave the house without

The INSIDER Summary: Binoculars will help you spot wildlife from afar.• <br>GPS doesn’t work everywhere in the parks, so bring a paper map.• <br>People have actually tried to hike in high heels. Leave them at home. America’s national parks celebrated their 100th birthday last year, but their rugged beauty and …