Outrage over girl 'surfing' whale shark
9 April 2012 Last updated at 01:38 BST
Social media networks in the Philippines have been buzzing with outrage after a photograph emerged of a girl standing on the back of a whale shark.
In spite of their size they only eat tiny plants and animals.
For many years, tourists have been able to swim alongside them, but now there are calls for tighter controls.
Kate McGeown reports from Manila.