Craters of the Moon, Idaho (KMVT-TV) There are almost 400 National Parks all across the United States. But this Saturday, September 29th, you can help clean up one of the parks here in your own backyard.

How'd you like to get into Craters of the Moon for free? The park is cancelling its $8 admission fee for National Public Lands Day.

What's the catch? They're hoping to get plenty of people out to help clean up Craters of the Moon.

Ted Stout, Chief of Interpretation, says, “It's been going on since 1994. Thousands and thousands of volunteers come helps out at their public lands, by cleaning up, doing habitat restoration, doing various projects all across the country.”

During National Public Lands Day, volunteers will come pick up garbage at Craters of the Moon National Park.

This weekend, some volunteers will be sweeping gravel left over from trail maintenance projects. Craters of the Moon employees will be handing out garbage bags and gloves, along with devices to pick up litter, especially in the lava tube caves.

Stout says, “We're going to have people go out, explore the caves and help us pick up trash and things that have accumulated in the nooks and crannies of the caves over the years.”

The caves at Craters of the Moon aren't connected with the original Batcave, so you might not find any kind of leftover crime fighting gear. But rest assured that by picking up litter here, you're helping fight trash and garbage in this national park.

Stout says, “The project will be going from 9:30 to 3:00 this Saturday, and we'd appreciate all the help we can get.”

Stout says National Public Lands Day is a great way for people to give back to our national parks.

Sept. 27, 2012.