<P> On 15 July 2011, at the biennial General Congress of FINA in Shanghai, the host - city of the 2017 World Aquatics Championships, Guadalajara, Mexico was announced as the winning bid . Kazan, Russia was awarded the 2015 Championships in the same vote, whereas the rival bid from Hong Kong, China was left unrewarded . Guangzhou (China) and Montreal (Canada) withdrew their bids shortly before the vote . </P> <P> In February 2015, Mexico withdrew from hosting the world championships with organizers saying they could not afford the $100 million price tag that goes with hosting the multi-sport aquatic event . On 11 March 2015, it was announced that Budapest would host the 2017 Championships . The city was originally slated to host the 2021 edition . </P> <P> The two main competition venues are located in Budapest: Danube Arena, a brand - new indoor swimming pool complex for swimming and diving on the eastern bank of the Danube just north of Margaret Island, and the existing Alfréd Hajós National Swimming Stadium, on Margaret Island itself, for water polo . Open water swimming events are held at Lake Balaton . High diving and synchronised swimming are held at temporary venues in Budapest . </P> <P> A total of 75 Medal events are held across six disciplines . </P>

Where are the world swimming championships being held