(CNN)An Australian couple has been rescued from a crocodile-ridden part of Australia's remote north after lighting a fire and scrawling the word "help" in mud to attract the attention of search crews.
Couple rescued from Australia outback after writing 'help' in mud
Colen Nulgit, 20, and his girlfriend Shantelle Johnson, 18, went fishing on Sunday in Keep River National Park, in the Northern Territory near the border with Western Australia. There are saltwater crocodiles in all waterways around the park, according to the Northern Territory government.
But Nulgit said their day of fishing turned into a freezing, sleepless overnight stay when their truck became "bogged" -- Australian slang for getting stuck in mud.
"Our hearts sank," Nulgit told CNN. "Just the feeling of getting bogged ... it's just pretty scary."
Nulgit said they had seen crocodile tracks in the area earlier and, as the waters rose and the sun set, became afraid of being swept away by a large tide -- or being attacked by crocodiles or dingos.
"These crocodiles that we get here, they're not afraid of humans, they're not afraid of anything," he said. "Food's food for them. Anything is food."
In their home town of Kununurra, 1.5 hours' drive away from the park, Johnson's mother called the police when they failed to return that night.
Nulgit said the pair huddled under a sheet away from the river, but couldn't get any sleep. They wrote "help" in large letters in the dry mud with a fence post at about 4 a.m. Monday, hoping to attract attention from a passing plane. However Nulgit admitted he was worried about being stranded for a long time, adding: "Hardly anyone goes out that way."