I'd like to know if there is any ferries going from Holland to Denmark. What cities do they run from, and how much such a ferry costs?
Also if anybody knows any interesting spots by the North Sea in the netherlands, what is the best spot/town to relax by the sea ?
I'd also like to see the windmills ,preferably where there is alot of them in one place.
If anybody can help me out wit theese questions i'd appreciate it .
As far as I'm aware, there aren't any ferries from the Netherlands to Denmark; it doesn't make much sense for them to exist with overland transport through Germany being much easier. Ferries from the Netherlands go to the UK only, I think, and from Denmark they go to either the UK or Sweden (and maybe also Norway).
For beaches, I'm quite partial to Noordwijk, or if you want less busy, try a bit north of that in Noordwijkerhout. Zandvoort als has something of a reputation, and Scheveningen is very accessible, being "part of" The Hague, plus it has the pier, but the beach itself wouldn't be my choice for relaxing at.
Probably the most visited place for windmills is kinderdijk, which has a whopping 19, (all or most?) standing in a long line along a canal. Alternatively, Leiden has a nice one standing in the middle of the city which houses a museum inside it. Can't think of any other easily accessible ones off the top of my head, though if you'd rent a bike and go ride past the outskirts of any of the cities, you'd stumble across them almost immediately.
Sander said it all; no ferries to Denmark...
re beaches: consider going north of Alkmaar, to a place called Schoorl. It's beautiful there, and usually rather quiet. But it's a long detour from most other sites worth seeing, so Noordwijk may be a better option.
For the windmills: Kinderdijk is a VERY good tip indded. It IS easily accessible by car, but not AS easy by public transportation (you would need 2 change...).
Another nice place 2 c with a lot of mills is Zaanse Schans (haha, I love the way the Dutch managed to make up a name for something which is impossible to pronouce and/or memorize by foreigners ) - http://www.zaanseschans.nl/ - its NOT only a place with a lot of windmills in one place, u can also c there how they udes 2 make the wooden shoes (and try on/buy some), how they made cheese & famous Delft porcelaine etc. In short: its sort aof a skansen-thing where you get to see how they used to do things in the old times. Also enter a few windmills. The admittion to the whole park is FREE (another good thing!), u only need 2 pay a small amoun (a euro or so!) for seeing the mills & well... there's temptation all around = lots of souvenir stores with cloggs etc . Its a REALLY good place 2 go for a (half a) day trip. And close 2 Amsterdam as well - VERY conveniently accessible by train (u need 2 take it 2 the station Koog Zaandijk - another pretty name ) and there's plenty of signs how to get the the park.