Around 4.20pm yesterday (14 August) a 5m fibreglass vessel started taking on water after being swamped by a large wave.
The occupants of the vessel, a man in his 30s and two 9-year-old boys were on-board. The three were clinging to the bow of the vessel which was the only part out of the water.
Around 4.40pm, a hand-held VHF radio floated free from the vessel and the man was able to grab it and make an emergency radio broadcast. This broadcast was received by Peel Water Police and Mandurah Marine Rescue.
Approximately 20mins later, an EPIRB in the vessel floated free and this enable rescuers to hone in on their trio's position.
Police Air-Wing and Water Police officers along with Mandurah Marine Rescue were despatched.
Officers in the police helicopter spotted the trio in the water about 10nm west of the Dawesville Cut.
Peel Water Police officers pulled the trio from the water and provided first aid.
They were taken to shore and then conveyed to the Peel Health Campus for treatment of hypothermia and jelly fish stings.
