I am planning a trip in Maastricht for the first day of the year.
Are there shops and the cafes are open during this holiday?
If a place in the Netherlands is closed two days in the year, it will be Christmas day and New Years Day.
Not everything will be closed but enough that I would not consider going to sight see or club in any town or city in the Netherlands.
I checked out a few of the main museums in Maastricht, which are mostly a good indication, and non of them is open on January First.
And city information site even mentions the few days the shops are closed, those include the first day of the year.