The answer is easy: as autumn comes grape harvest comes!
In Hungary autumn (from September mainly to November) is the time for grape harvest. This time of the year people come together on vineyards located in different wine regions in Hungary (some of them are located around Lake Balaton), collect the grapes, have great meals and drink the old wine made in the previous years. So they have fun! Be the part of it and collect the experience together with the grape!