Reichenau is around a 90km drive from Vienna. You can also get the train there. The Rax mountain is a fairly easy place to do a bit of hiking for the inexperienced. There are frequent cable cars going up to about 1.5km height and then you can hike to Ottohaus for lunch or refreshments. Views are spectacular depending on how low the clouds are. Proper clothing and hiking boots is recommended.
http://en.wikipedia.org/wiki/Rax
http://region.austria.info/at/guide/152785sy,en,OEWE/objectId,RGN110620at,_site,uk,_area,provinces-regions/home.html
A few shots from Rax 14/08/2010

