Boxing Day tsunami: The story of survivor who inspired Cristiano Ronaldo
Martunis - who was seven at the time - was found by a Sky News team 21 days after the disaster on a beach in Indonesia, as he searched in hope of being reunited with his family.
Please use Chrome browser for a more accessible video player
2:51
'Impossible to forget' - the words of one survivor who has been reflecting on the devastating Indian Ocean earthquake and tsunami which marks its 20th anniversary tomorrow.