At the end of our first seminar class Catherine mentioned an Orienteering event this coming weekend.
Here is the link to the hosting club, New England Orienteering Club (http://www.newenglandorienteering.org/
). The event itself is listed on the schedule (http://www.newenglandorienteering.org/sched.htm) - it's at Great Brook Farm in Carlisle, MA with start times between 10 am and 1 pm. And there will be lots of beginner instruction!
If you need more information please contact Catherine at catherio@mit.edu.