Each year between the 27th and 30th of June, thousands of thirsty locals and a handful of lucky (wine addicted) tourists climb a mountain in La Rioja, Spain, and throw the sweet red liquid all over each other. This is St Peter’s Feast Day, though you’d be lucky to find a local who could tell you so, and the event is known around these parts as La Batalla del Vino de Haro – or better known by us guiris as the Wine Fight.