On Tuesday, June 21, Grand Canyon National Park will be joining national park units around the country in welcoming summer with a fee-free day. The National Park Service will be waiving entrance fees on June 21, 2011. Visitors who arrive on Tuesday, the 21st will be allowed to enter the park free of charge. Those who plan to spend time in the park beyond the 21st will need to pay the regular entrance fee for the remainder of their stay. “The longest day of the year is the perfect … [Read more...] about Grand Canyon Celebrates Summer by Waiving Fees