Apple care water damage

No, it does not. If you have AppleCare +, then you do have the option for 2 instances of accidental damage at a reduced price, but if you don't, then you pay the full out of warranty price. watch Repair - Official Apple Support

Please read the Terms & Conditions for AppleCare + for Apple Watch. https://www.apple.com/support/products/watch/

So I can take my MacBook to the nearest Apple store and tell them for the accidental damage for a reduced priced?

This discussion of AppleCare+ is for the Apple Watch, not the MacBook.