Lausanne (pps) Every year on June 23 amateur and professional athletes from all nations celebrate “Olympic Day” to inspire people for sports and the Olympic idea. The International Olympic Committee (IOC) promotes the 2012 event on the website (http://www.olympic.org/olympic-day) with a world map displaying NOC activities as well as individual tweets. The IOC is also calling upon everybody to get active via the Social Media platforms (Twitter, Facebook and foursquare). The site http://www.foursquare.com/Olympics is a mobile, location-based social network to spread the word about Olympic Day and to encourage people to check into sports venues around the world - including past, current and future Olympic stadiums and training centres. When users check in to at least two affiliated venues and follow the IOC on foursquare, they unlock the official "Get Fit for Olympic Day" badge and will be directed to enter a contest to win a trip to the 2012 Summer Olympic Games in London (27 July – 12 August). The IOC's page on foursquare also includes historical facts about the Games and information about Olympic stadiums and facilities, and will soon feature locations where athletes have trained and places that might have inspired them.