Yeeeeeeh it's our Queen's birthday..... no, it's not, it's our current Queen's mother's birthday! Our current queen's birthday is in the Winter and we don't want outdoor parties in the winter!
Ok, it's a very good reason for a lot of people to get plastered and forget the misery that is their lives... LOL!
Personally, I am not that fond of Koninginnedag, because I have experienced too many drunken fights and people running past me with knives, I like Bevrijdingsdag more, which is on the 5th of May, it is the day we celebrate our liberation from the German occupation in WW2!
Some Koninginnedag pictures...