Naked fire walking.... just cost a few bags of charcoal!

Swimming with sharks, get them on a boat go few miles out tell them to jump remove the boarding ladder and start shouting shark while pointing at the water!
Sea gulling at a popular picnic spot. Cost a few bags of chips!
Compass orienteering in the bush, buy a few cheap compass, dump them in the bush give them a map and take the money left and go and wait for them to arrive at the designated point marked on the map (a nice and comfy country pub) where you could put yourself in real team building activities while waiting for them to arrive.
Bikini paint balling.



