Some of my favorite tips for national parks:
1. When visiting Yosemite National Park in California, be sure to venture outside of Yosemite Valley. There are fantastic hikes in the southern part through giant sequoias and glacier rocks.
2. A perfect way to spend a hot summer afternoon is tubing down mountain creeks in Great Smokey National Park in Tennessee
3. Don’t try and feed the alligators at Everglades National park in Florida