Wachau 11/6 or 12/6 (Vienna)

Hi there!

This is for the "new in town" people, but "old in town" guys are very welcome to come. I heard this a beautiful area outside the city, and I want to give it a try. Either we can go by train (get a cheap w-end ticket for Protected content , or if some people with car are willing to drive, we can split gas cost. If you have a bike, please let mek now as I might take mine if we are going by train.
I have a very open plan, and I welcome suggestions. Either day will work for me. It should be A DAY trip, leaving anytime in the am, and coming back anytime pm. Suggestions are welcome. For more info: Protected content idea is to go to Krems or Melk and bike around, or take a boat.