This is one of our semi-regular projects and it is back this term. We visit them yearly and help them maintain a large wood land area. Prepare to get stuck in and get your hands dirty (you can skip your arm day at the gym). Fresh air with a good company - that's the recipe to calm your minds down and forget those deadlines at least for a few hours.
PS - it is scientifically proofed that spending a few hours in a fresh air increases your productivity!
And by the way, did we mention free hot meal after all those bushes are down?