We just came across this well-written travel report about Luxembourg's Little Switzerland (Petite Suisse Luxembourgeoise):
http://www.gonomad.com/destinations/1212/luxembourg-hiking.html
And an Echternach - focused post from the same blogger:
http://www.sarasroundtheworldtrip.com/2012/10/26/echternach-luxembourg-a-community-exuding-old-world-charm/
The official website of the Mullertal region is: http://www.mullerthal.lu/en
That should be enough for an active week-end, as soon as the spring settles-in.
