WATCH: Humpback whales on the move off the coast of Australia

Tourists got the surprise of their lives when they saw this spectacular scene of nine male humpback whales chasing a female.

The footage was captured by Ocean Rafting in August 2018 in the Whitsunday Islands, off the coast of Queensland Australia.

The tourists can be heard gasping in amazement as the huge mammals break the surface of the water.