La Tomatina 2011, Buñol, Valencia, Spain

Description
At around 10 AM, festivities begin with the first event of the Tomatina. It is the "palo jabón", similar to the greasy pole. The goal is to climb a greased pole with a ham on top. As this happens, the crowd work into a frenzy of singing and dancing while being showered in water from hoses. Once someone is able to drop the ham off the pole, the start signal for the tomato fight is given. The signal for the onset is at about 11 when a loud shot rings out, and the chaos begins.
Several trucks throw tomatoes in abundance in the Plaza del Pueblo. The tomatoes come from Extremadura, where they are less expensive and are grown specifically for the holidays, being of inferior taste. For the participants the use of goggles and gloves are recommended. The tomatoes must be crushed before being thrown so as to reduce the risk of injury.
After exactly one hour, the fight ends with the firing of the second shot, announcing the end. The whole town square is colored red and rivers of tomato juice flow freely. Fire Trucks hose down the streets and participants use hoses that locals provide to remove the tomato paste from their bodies. Some participants go to the pool of “los peñones” to wash. After the cleaning, the village cobblestone streets are pristine due to the acidity of the tomato disinfecting and thoroughly cleaning the surfaces.