Does anyone have any experience with a Spa/Resort in Bavaria Germany that you would recommend?

I am thinking about going at the end of October beginning of November and am looking for a resort in which I can get health and beauty treatments ,as well as, other physical activities such as hiking and swimming. I would also like to use it as a base for day touring such as Neuschwanstein Castle etc. I won't have a car unless I rent one. Is it necessary? Would love some sort of hotel/spa package. Of course accommadations and food must be good. Entertainment would be a plus. Not asking for much am I? Any suggestions would be greatly appreciated. Thanks for your thoughts?

InterContinental Berchtesgaden seems to have it all, you can check this link and watch the photo tour of the place. It looks wonderful amidst the Bavarian Alps. It's very well connected so probably you won't need to rent a car. This is my favourite part of Germany; not only because it's scenic, but because of the first class, yet calm and unobtrusive service.

http://www.ghotw.com/hotel/home/intercontinental-berchtesgaden-resort.htm

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