If you don't feel like taking a long obligatory train trip to Jungfraujoch, take a funicular to Harder Kulm. It takes only 8 minutes to get to the viewing platform, and the views are fantastic. There are some good hiking trails on the mountain.
About me:
Nick: MaD CoW
Name : Mark Schultz
Age: 23
Born in: Holland, Live in Zürich
Hobbies: internet, nightlife, PS2!