Deep sea documentary makers, Andrew and Liz Wight, experienced first hand the power of Aboriginal mythology on location of their first Quest documentary.

The dynamic duo spied a snake just moments before submerging themselves in Australia's largest underwater cave system.

Aboriginal elders warned that the snake or rainbow serpent is an ominous sign and advised not to proceed with the dive.

The couple ignored the advice, a flash flood ensued and the diving party were trapped in the cave for days - luckily no lives were lost