|Photographs courtesy Marissa Rakic|
The idea is to build the cardboard boxes up, then seal them in plastic bags, and use these boouyancy 'blocks' tp build a raft. In practice, of the three teams who attempted it, only one got their 'sailor' safely across the pool. Here are the two unsuccessful teams at their moment of immersion:
The first team built a raft that had good, solid boxes, well tied together. However, they built a narrow raft which had very poor stability, and despite a few attempts, the raft was unable to remain upright.