The Spi Ouest France The Spi Ouest France is an unmissable event at La Trinité-sur-Mer, marking the start of the boating season for those passionate about monotype sailing. It brings together over 450 boats and almost 3,000 sailors. Also on the show: in the “sailing valley” of Brittany, a whole industry has sprung up linked to the sea. Here, nautical technologies are tested by specialised companies.