If possible I would avoid being anywhere densely populated in the Netherlands over New Years. The whole country loses their fucking minds, handing explosives to children as young as ten with the advice: "Go have fun in the street, kid". Strangers shoot fireworks in every direction, at buildings, into the canals, at random strangers just trying to get to shelter.

When I lived there, my girlfriend and I would always book a holiday well out of town on NYE. It's insane, and not in a fun way.