According to HLN News and CNN, there are 62 national parks in the United States. White Sands NP in New Mexico is the 62nd NP. There is nuclear radiation in the museum in Grand Canyon NP in Arizona. There is quicksand in Zion NP in Utah. Indiana Dunes NP is Indiana's first national park.
There are 22 national parks in South Korea.
According to Convoluted Universe: Book One by Dolores Cannon, "Bigfoot makes clicking sounds and noises like animals do." Check out my topic on 'Mysterious disappearances in national parks' on the Paranormal board. David Paulides warns us about going to national parks and remote places around the world.