(ABC.NET.AU) — A young couple who sparked an air and land search of isolated terrain in Australia’s north say one of their biggest fears was attracting saltwater crocodiles.

Shantelle Johnson and her partner Colen Nulgit lit spot fires and scratched “HELP” into the mud after their utility became bogged during a fishing trip to the Keep River National Park in the Northern Territory, close to the border with Western Australia.

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