"I identified all their lizards and promptly made them put them back," she says.
It's illegal to remove wildlife from national parks.
A ranger's request: Stay on the trails and off the arches. The land off the trails is home to biological earth crust which protects against erosion and takes decades to rejuvenate after being stepped on. The arches are all made of red sandstone, a mixture of quartz, feldspar and iron oxide. While they may look sturdy, they could collapse if you climb on them.
Carry more water than you think you need. Thomas says heat-related illnesses are the No.1 medical issue at the park. She recommends you drink a minimum of one gallon of water per day and carry salty snacks to maintain electrolyte levels.
Also, be sure to shake out your shoes before putting them on. That's because scorpions gravitate toward dark, cool spaces. If you see a rattlesnake on the trail, do not chase it. Thomas says the majority of rattlesnake bites that happen in the park are on peoples' hands.
Another park she'd like to visit: Denali National Park in Alaska.
"I've never been to Alaska and I want to see really raw, big mountains," Thomas says. "I'm always into the biggest and the best. I want to see something that is more primitive than anything else we have (here)."