What is the best team event for a work group of about 12 people to promote internal relationships ?

I have a new group of people working together. I want to get the group to bond together and set up for a successful year in 2007. What's a great event to do?What is the best team event for a work group of about 12 people to promote internal relationships ?
Look locally for a "ropes" course or something similar. That's a fun physical way to learn teamwork.

Another way to promote group unity is to collectively organize a fundraiser for a worthy cause. Promote friendly competition. Follow a successful fundraiser with a little celebration party.What is the best team event for a work group of about 12 people to promote internal relationships ?
Contact Habitat for Humanity and help build a house for someone who really needs it.What is the best team event for a work group of about 12 people to promote internal relationships ?
Volunteer at a soup kitchen or something similar - it will allow everyone to work as a team, to accomplish something everyone will feel good about.