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