Gimme Three Steps

Gimme Three Steps (also known as Franklins Tower) is a recurring challenge of Survivor.

Rules
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 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 must then head back out into the water and use that key to unlock a ball attached to a rope which they will use to drop a ladder to the second level of the tower. At the top of the ladder, they will find a third key. They must then head out one last time into the water and use that key to release a pole. They will use the pole to knock off a bag of puzzle pieces. At the top of the tower, they must use the puzzle pieces to solve a three-tiered puzzle. Although Tai Trang got to the third tier of the puzzle first, Michele Fitzgerald managed to solve the puzzle first to win the final immunity.

In, the castaways must first climb a ladder and go down a cargo net. They will then have to traverse a series of obstacles, where they will then untie a bag containing sandbags. They must get one sandbag into a basket, which will release the first ladder on the tower. On the second level, castaways will then use a ball and rope to pull down a second ladder. At the top of the tower, the castaways then have to solve a cog puzzle to hoist their flag. In a closely fought challenge, Chrissy Hofbeck finished her puzzle first to win immunity.

Trivia

 * Only females have won this challenge.
 * The challenge in 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.