at midday exactly, at the sound of a cannon shot, trucks filled with ripe tomatoes unload their cargo in the center of town .This is the moment people have been wailing for Excited crowds grab the tomatoes,and the world's biggest tomato fight begins. Neighbors also participate in the battle by throwing buckets of water from their balconies and windows to refresh the warriors in the battle of the tomatoes . Soon all the walls of houses are covered in red and participants are knee-deep in tomato juice.