"One at a time, six tribe members would slide down a water slide. They would then swim out to retrieve a numbered tile, then run up the hill they slid down to drop their number off. Once all six tiles were retrieved, the remaining castaway would use the tiles to solve a numeric puzzle. The answer to the puzzle is a combination to open a locked chest, which holds an axe. The first tribe to open their chest and use the axe to cut a rope that would raise their tribe's flag would win." ~ @SurvivorWiki
Proceed to tribe events.