In the Studio 21 Imaginary Landscapes

Mark a starting point in the performance space. The first person enters and makes a physical offer, i.e open a gate, jump over a ravine, crawl down a tunnel then come back out. The next person repeats the first action then adds something then comes back out, the next person goes etc...The landscape builds, but make sure its mimed parameters stay accurate. 

Once the landscape is established two or three adventurers can inhabit it. What are they looking for? What happens? Find an ending. Those watching can make suggestions and begin to find a story.