A woman ignored safety rules to dip her hand into a boiling hot spring before screaming "it's hot" at Yellowstone National Park.
The natural beauty spot filled with volcanic hot spots has become the site of troubling incidents recently with many people behaving recklessly.
The unidentified father-daughter duo ignored safety rules and walked off-piste from the boardwalk that sections off parkgoers from boiling hot Silex Spring.
The hot springs, on average, reach around 175F (79C) in the National Park.
Cameraman Gary Mackenzie said he warned the duo to stay on the boardwalk, but the father reportedly replied: "Whatever, man."
"So, I hit record," Mackenzie said.
The video was posted to the Instagram account @TouronsofYellowstone.
The account's bio says: "Tourist + Moron = Touron!! I spend some time in Yellowstone and it never ceases to amaze me how stupid people are! (What not to do)."
The video shows a stream running into the bright blue spring and the woman contorts her body seemingly to find the best way to reach her hand into the boiling water.
She then gripped onto her her dad's hand and leaned toward the spring.
After she dips her hand briefly into the crystal blue water, she quickly springs backwards and scrambles to her feet, running away, screaming: "It's hot! It's very hot!"
She screams in pain and walks back onto the boardwalk.
Mackenzie said he would have stopped the pair, but he couldn't find a ranger and didn't have phone service while it was unfolding.
The National Park Service advises all visitors on its website and on the trail to stay away from thermal activity and keep on the boardwalk at all times.
"Deep beneath your feet, heat from the molten rock of the earth’s interior is transmitted up through the solid rock of the earth’s crust. Groundwater circulating through these rocks becomes heated and follows cracks and fissures upward.
"Where the hot water can escape the ground’s surface, a hot spring is formed", the website says.
In 2021, a woman suffered significant thermal burns from her shoulders to her feet while trying to save her dog who jumped into a hot spring at the park.
The 20-year-old woman from Washington State was looking just outside her car when suddenly her dog lept out of the vehicle and ran into the Maiden’s Grave Spring.
The woman followed the dog into the hot spring to save it, perhaps not realising the temperature and her father pulled her out.
Yellowstone has more than 10,000 hydrothermal features, including geysers and hot springs, that can be as hot as nearly 200 degrees Fahrenheit, according to the US Geological Survey.
