Step On Up (Episode 14, "Lie, Cheat And Steal")
This challenge is fresh to Survivor but incorporated elements from the puzzle staircase challenge from Season 22 (Survivor: Redemption Island), which exhausted Boston Rob to the point of almost passing out.
For Second Chance, the staircase isn't quite as tall and the crew added a puzzle element to the end, in order to provide more catch-up possibilities for the less-physical competitors. This is also the same tower used for the Air Raid Challenge. It took a carpenter and a team of local labor three weeks to build, and the puzzle steps get harder as players get farther up the staircase.