Prices will increase from $10 to $80 starting August 28.
Senior Woman at Yosemite National Park
Credit: Andy Ryan/Getty Images

Travelers looking to take advantage of the National Park Service $10 senior lifetime pass only have a few more days left to do so, as the price of the pass will go up to $80 staring on Aug. 28, 2017.

The pass gives travelers age 62 and older free entrance for themselves and up to three adults at thousands of locations managed by the National Park Service, the U.S. Fish and Wildlife Service, the U.S. Forest Service, the Bureau of Land Management, the Bureau of Reclamation, and the U.S. Army Corps of Engineers.

Now, for the first time since the fee was enacted in 1994, the pass increase eight-fold, which is why the National Park Service has been seeing a boom in demand for the passes.

The National Park Service has received more than 250,000 requests for this year, compared to a previous record of 33,000, according to The Washington Post.

Some locations have run out of physical passes, which is why the park service will be accepting photo IDs along with an email confirmation of a purchased pass as a form of entry.

Congress first created the pass as a free option back in 1972, later converting it into a lifetime pass, and raising the fee last year during the National Park Service’s Centennial.

Buyers also have the option to purchase annual senior passes for $20, which can be purchased four years in a row to convert into a lifetime pass.

Passes can either be bought at a federal recreation site where entrance or standard amenity fees are charged, through mail, or online.