In the early hours of 26th December 2004 the third largest earthquake ever recorded struck the Indian Ocean. The result was a tsunami which travelled at 800 km per hour. As it reached the shores the waves grew to over 15 metres in height. A quarter of a million people died and two million were made homeless in countries across Southeast Asia and beyond. Ten years on BBC Radio 5 live revisits local survivors, who were children at the time, and British tourists as we remember the horror of one of the deadliest natural disasters in recorded history.