Perth pair swim to shore after boat flips

A 25-year-old man and a 17-year-old girl were forced to swim to shore after their catamaran overturned in waters off Perth overnight.

The vessel flipped about 500 metres off an area between Ocean Reef and Burns Beach.

The pair initially clung to the hull, but then made their own way back to shore and were helped out of the water by local police.

They were treated by paramedics before being taken to Joondalup Health Campus suffering minor cuts and bruises and mild hypothermia.