"Six members from each tribe would race to assemble a boat from seven pieces and seven planks and then paddle the boat out into the ocean to light their torch from the raft. Once the six members return with the fire and the seven planks, the remaining four tribe members would assemble a puzzle. The seven planks from the boat would then be used to assemble a ladder to the top of a platform and place the completed puzzle in a slot halfway up. The first tribe to have their whole tribe at the top of the platform and light their fire barrel would win." ~ @SurvivorWiki
Proceed to tribe events.