Ones I have organised in Past:-
Go Karts at the Indoor places
Fishing Charters
Setting up a few of those bungy blow up castle thingys, bucking horse etc BBQ and drinkies
Also had a consultant came out and did Tai Chi in one group and then you swap over to these other people that have quizzes with hoops etc and you all have to work together to solve them, was ok as far as day on the park and stay in the hotel !
Will try look up who they were !
Think it was these ones:
http://www.corporatechallenge.com.au