Stairway to Heaven (also known as Styx) is a recurring challenge of Survivor.
The tribes must place twelve poles of varying lengths into their holders to form a staircase, and then run up it. One at a time, three ride a zipline to a pontoon, grab a bag of puzzle pieces, and swim back, then all three climb a ladder back to the platform, where the final three solve the puzzle.
A variation of this challenge was used again in Survivor: Cagayan. Each tribe would build a staircase out of wooden poles, then climb it to reach a bamboo maze. Upon exiting the maze and sliding down a bamboo slide, one tribe member would maneuver a key through a rope obstacle, using the key to unlock a machete to release puzzle pieces. Two more tribe members would then solve a puzzle to reveal the solution to a combination lock. The first tribe to unlock their flag would win immunity. Despite quickly falling behind on the staircase portion, the Solana tribe came out victorious due to LJ McKanas and Woo Hwang's puzzle solving skills to win.
| Cook Islands|
"Why Aren't You Swimming?!"
"We Found Our Zombies"
Ciera, Joe, Spencer, Stephen, & Tasha
- When the challenge was used before the merge, it was the last challenge before the jury phase started.
- Spencer Bledsoe and Tasha Fox are the only castaways to compete in this challenge twice.
- They lost on their first attempt, though won on their second attempt.