Summer travelers may find that visiting a national park is a hair pricier this year as some rate hikes go into effect June 1.
But nature-loving vacationers shouldn't worry too much. The planned increases aren't widespread and aren't they likely to be a budget-buster.
Starting June 1, visitors will pay either $3, $5 or $10 more at parks that currently have entrance fees. The most common rate hike is $5 more for a seven-day vehicle pass, National Park Service spokesman Jeremy Barnum told CNBC in an email.
For example, a seven-day pass to Mount Rainier National Park in Washington will be $30, up from a current $25.
"Thirty dollars to get a carload of friends or family into a spectacular national park for seven days remains an excellent value for vacationing families," he said.
The price increases affect entrances to 117 of the 417 national U.S. national parks, including Acadia, the Grand Canyon, Yellowstone and Yosemite.
"The other 300 parks are free to enter all of the time," Barnum said.