On 26 December 2014 an English girl, Tilly Smith, was walking on a beach with her family in thailand. When they went down to the sea, Tilly saw that something was wrong. The water was all frothy, said Tilly , it was bubbling, Tilly remembered a short film her class had seen at school about a massive wave called a trunamal. In the flim the sea became frothy just before the tsunami struck. Tilly knew that a tsunami was coming . She began to scream at everyone to get away from the beach. Minutes later, the Great. Indian Ocean tsunami struck the coast.