Our company does these "community / environment / team building" things now and then.
Spent the afternoon building a hazel wattle fence to protect a local wild flower garden from dogs. I love these things - you can actually see what you have achieved at the end of the day.

Bloody hard work for an unfit desk jockey like me tho'.

This one was at a park just minutes away from my house - so I'll be taking me nearest and dearest for a walk in the park and pointing at "my fence, that I built with my bare hands" as soon as possible.