The Hungarian capital is set to be the focus of the aquatics world from tomorrow until July 30, when the Championships at the Danube Arena will conclude.

The facility, which has two 50 metre pools, will be able to hold 15,000 spectators during the Championships, before being reduced to a capacity of 6,000 after the ensuing World Masters Championships.

Thermal energy obtained through the chilling of hot water is used for the heating of the building, as well as keeping an adequate water temperature in the pools and providing hot water in the showers and toilets.

It is claimed the process means one third of the energy needed to heat the venues comes from a renewable energy resource.

The venue had been poised to be one of the key venues in Budapest’s bid for the 2024 Olympic Games, before the city withdrew from the race in February, amid fears of a referendum.

The Championships is one of the first major sporting events in the city since its withdrawal.

Men’s and women’s synchronised 1m springboard competitions will begin diving action tomorrow, with qualification getting underway.

Solo and duet technical events will begin the synchronised swimming schedule, with the competition being held in the Varosliget Park.

Synchronised swimming and diving will be held until July 22, along with open water swimming events at Lake Balaton.

Water Polo will take place between July 16 and 29, with high diving scheduled for the final three days of the Championships.

Swimming action will be held from July 23 to 30.

The FINA Congress is poised to take place on July 22, with incumbent President Julio Maglione being challenged by Italy’s Paolo Barelli.

Budapest stepped in to stage the event after original hosts, Mexican city Guadalajara, pulled out due to fears over falling oil prices in 2015.

The city was initially due to stage the 2021 edition, which has since been awarded to Fukuoka in Japan.