En español | If you want to visit a national park, you’d better go soon. The National Park Service announced a proposal Tuesday that would more than double the peak-season entrance fees at the country’s busiest national parks, including Yosemite, Yellowstone and the Grand Canyon.

The move to raise prices at 17 sites is designed to help defray the costs associated with improving maintenance and infrastructure at the parks. Even so, the tentative plan has sparked concerns that many would no longer be able to afford a visit. Right now, prices hover around $30 per vehicle but would skyrocket to as much as $70 if the plan is carried out.

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“We need to have a vision to look at the future of our parks and take action in order to ensure that our grandkids’ grandkids will have the same if not better experience than we have today,” Interior Secretary Ryan Zinke said in a statement. “Shoring up our parks’ aging infrastructure will do that.”

The proposal would affect the following 17 national parks during the busiest five months in 2018:

  • Acadia
  • Arches
  • Bryce Canyon
  • Canyonlands
  • Denali
  • Glacier
  • Grand Canyon
  • Grand Teton
  • Joshua Tree
  • Mount Rainier
  • Olympic
  • Rocky Mountain
  • Sequoia & Kings Canyon
  • Shenandoah
  • Yellowstone
  • Yosemite
  • Zion

The proposal would not affect the scheduled free weekends and holidays at parks throughout the year.

But many concerned citizens took to social media this week to voice their complaints, arguing that it’s the right of all Americans — and not just those with a lot of money — to visit the country’s national parks.

Chelsea Clinton, for example, tweeted: “Instead of raising National Parks’ admissions, why doesn’t the Trump administration reverse its proposed National Park Service budget cuts?”

If you, too, are concerned, you have until Nov. 23 to submit feedback to the National Park Service. Comments may be submitted electronically, through the park service’s website, or by mail.

Of the 417 national park sites, 118 charge an entrance fee.

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