Hero schoolboy swims for four hours in rough seas to save mother and siblings
The 13-year-old was hailed for his determination in extraordinary circumstances - and has been credited with saving his family's lives
Australia
Swimmers scramble to flee bull shark at Sydney beach - just days after horror attacks
Lifeguards could be heard giving an urgent call to attention over a loudspeaker as beachgoers rushed out of the water
Australia suffers fourth shark attack in 48 hours - as experts reveal 'disgusting' reason why
'The next seven days is the most dangerous time we will have seen in years,' one expert said
