The official site of Equestrianat the Games of the XXXI Olympiad is city2surf.com.au . The no. of events in sport was 18 . 37 from 31 nations competed in Equestrianat the Games of the XXXI Olympiad . Hadleigh Farm (mountain),National Equestrian Center,Melbourne (since 1972) were the venues of Equestrianat the Games of the XXXI Olympiad . 1–12 August was when it was held . 1881; 138 years ago (1881) is when Equestrianat the Games of the XXXI Olympiad was established 
More than 24 games were held in Equestrianat the Games of the XXXI Olympiad