这个周末国家公园免费进！
Free admission days are coming again!So we'd like to take a moment to remind you to get out and enjoy the natural beauty of this great country, with free admission to over 100 national parks on Saturday, August 14th and Sunday, August 15th.
If you can't make it out this weekend, you'll still have a couple of chances to catch the beauty of our parks in the fall, with free admission days coming again on September 25th and November 11th.
Also, see here:
[url=http://www.nps.gov/findapark/feefreeparks.htm]Free weekend admission to national parks[/url]
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