The National Park Service is waiving admission fees on 17 selected dates throughout 2012 and encouraging all Americans to make a New Year’s resolution to visit a national park this year.
The 2012 fee-free dates will be:
* January 14-16 (Martin Luther King Jr. Weekend)
* April 21-29 (National Park Week)
* June 9 (Great Outdoors Day)
* September 29 (National Public Lands Day)
* November 10-12 (Veterans Day weekend)
http://www.nps.gov/findapark/feefreeparks.htm