Workcamps | Hartenberg
- Hartenberg III. (2010)
- Hartenberg II. (2010)
- Hartenberg Start (2010)
- Hartenberg IV. (2009)
- Hartenberg II. (2009)

Many young people from over the world come to Hartenberg every year. They work with shovels, pickaxes or wheelbarrows full of bricks. While helping to restore the old castle, they make a lot of both local and international friends and have a lot of fun.