By the end there were only seven contestants left on the island; the others had departed to have fun on the mainland of Aitutaki and Jess left in week 5 to sail round the South Pacific. Unlike the recent series which have had game show formats, the original series (and to an extent series 2 and 3) relied on trial and error which gave it a very raw format. A pig was slaughtered in week 4, chickens were humanely killed, and fish, snails, clams and octopus were caught by hand in the open sea. There were expeditions to the reef to fish, night fishing and in week 3–4 the island was flash-flooded by high tides. Also in approximately week 3-4 the cast began weekly canoe trips in pairs to the mainland to collect "supplies" (vegetables and fruit).