Nicole Graham at Avalon Beach in Geelong, Victoria, Australia.
Race against the tide: Bravery of young mother who stayed by her horse's side for THREE HOURS after getting trapped in mud 'like quicksand'
Panic as 78-stone show horse is 'swallowed-up' by mud
Mother freed her daughter and another horse before returning to trapped animal
Astro was freed just minutes before the tide closed in