The regatta is a part of the historic Lord Mayor's Present festivities, with 50 scorching air balloons retreating throughout central London to boost consciousness and …
Source : https://www.independent.co.uk/news/uk/home-news/hot-air-balloons-london-cancelled-weather-lord-mayor-b2583264.html
London's hot air balloon festival cancelled for fifth year in row due to concerns over poor weather
