Just now, there is kind of a party in front of my house, in Rappenburg. They've brought a medium sized boat in front of a house, put a lot of chairs and tables and they are now playing some music... These Dutch people know how to enjoy life in their country.
These sunny and nice days make you forget a bit about the crude winter in this land... So, my recommendation is that if you plan to travel to the Netherlands, do it from April to July, especially in April when Keukenhoff is open.