You can see that the Amsterdams streets,
roads, parks and canals come alive in a sea of Orange on Queens
Day or 'Koninginnedag' of Netherlands which falls on 30 April.
Orange is the colour of the Royal family. It is great fun
to visit Netherlands during the Orange Festival. It is amazing
to see that oranges can be used to build windmills, castle,
houses and so on.
It is preferable if not mandatory to wear orange during this
national event of the Amsterdam Orange Festival.