The cycle of music festivals is unceasing. Austria Events are held throughout the year. In January, New Year concerts consist of lavish balls in Vienna . February brings Fasching (Shrovetide carnival) which celebrates the return of spring with masked processions and dances. Corpus Christi (the second Thursday after Whitsun) is heralded with more carnivals, some held on lakes in the Salzkammergut. The Vienna International Festival (from mid-May to mid-June) has a wide-ranging program of arts and is considered the highlight of the year. Midsummer Night's celebrations on 21 June light up the sky with magnificent bonfires. The Salzburg International Festival takes place in late July and August and includes plenty of music by the city's favorite son, Mozart. National Day on 26 October involves lots of patriotic flag-waving. St Nicholas Day, on 5 to 6 December, marks the beginning of the Christmas season.