On our property we have a big dam. We have a canoe, a kayak and a tractor tube to muck around with. One of the best things we have is our flying fox. To make it we strung up a cable from one tree, to another, on the far side of the dam. For the pulley dad rearranged the front handle bars and wheel of a bike. You fly down the hill and drop into the middle of the dam. Dad also cemented car tyres into the wall of the dam to use as steps, to make it easier to get out where we drop.