walking on the pipes

hey flozzer thats a good example of how wide we want the pipes to be...also are they gong to be bare footed because we need to see if they would slip off etc... im getting my housemate to take pictures of me on a climbing frame, how else can we develop our ideas with the set? we could do the trapeses thing would be really worth it i reckon, just quite expensive?? what do you guys think?