The castaways must race through a course to a giant tower. They will then have to release two sets of stairs or ladder rungs to reach the top of the tower. At the top, the first castaway to solve their puzzle wins immunity.
History
The challenge debuted in Kaôh Rōng as the Final Immunity Challenge. The castaways had to race out into the ocean and retrieve a key to unlock a set of stairs at the bottom of the tower, finding a second key at the top of the stairs. They then headed back out into the water and used that key to unlock a ball attached to a rope which they used to drop a ladder to the second level of the tower. At the top of the ladder, they found a third key. They then headed out one last time into the water and used that key to release a pole which they used to knock off a bag of puzzle pieces. At the top of the tower, they used the puzzle pieces to solve a three-tiered puzzle. Although Tai Trang was the first to get to the third tier of the puzzle, Michele Fitzgerald managed to solve the puzzle first to win the final immunity.
In Heroes vs. Healers vs. Hustlers, the castaways climbed a ladder and went down a cargo net. They then had to traverse a series of obstacles, where they then untied a bag containing sandbags. They then had to get one sandbag into a basket, which released the first ladder on the tower. On the second level, castaways then used a ball and rope to pull down a second ladder. At the top of the tower, the castaways had to solve a cog puzzle to hoist their flag. In a closely fought challenge, Chrissy Hofbeck finished her puzzle first to win immunity.
Chrissy working on her puzzle in Heroes vs. Healers vs. Hustlers
Trivia
Only females have won this challenge.
The challenge in Kaôh Rōng is the only time the Final Immunity Challenge is not held on the penultimate day of the season, and is the only time a non-tiebreaker challenge is held after the Final Immunity Challenge.
