Me and parents are planning a trip for about 3-4 weeks next year(end March).
My mother has some family in Holland which she would want to go visit for about a week.
The rest of the trip we are planning to visit the neighboring countries; Germany, Czech, Austria(maybe some more east), Switzerland, France, Belgium. Ideally we would want to finish the trip in .nl.

So if anyone can recommend what to do/see in these countries, what is cool, what is overrated etc, what beer/wine to drink/taste, tradition food and events, nightlife to experience. Ofc we have a much weaker currency than EU, so I don't want to waste all my money on one expensive night out :P

Thanks <3