O-Black Water is a recurring team challenge in Survivor. It first appeared in Survivor: Worlds Apart and reappeared in Survivor: Game Changers.


The castaways are divided into two teams of five. One at a time, each castaway will cross an obstacle course. Once all five members have completed the course, they will dive into the water for a grappling hook, which they will use to secure five rings. The first team to grab all their rings wins.


In Survivor: Worlds Apart, the teams were neck and neck at the grappling portion, but the blue team of Dan, Mike, Shirin, Sierra, and Tyler pulled ahead winning reward which was a feast of chocolate.

In Survivor: Game Changers, the blue team of Andrea, Aubrey, Brad, Debbie, and Sierra had a huge lead and won reward earning a picnic due to Cirie on the orange team having trouble getting across the balance beam. After the challenge was over, Jeff Probst and Cirie's castmates all encouraged her to cross the balance beam, which she did earning a round of applause from everybody.


Episode Challenge Type Winner
Worlds Apart
"Livin' on the Edge"
Team Reward S30 dan tS30 mike t
S30 shirin tS30 sierra tS30 tyler t
Dan, Mike, Shirin, Sierra, & Tyler
Game Changers
"A Line Drawn in Concrete"
Team Reward S34 andrea tS34 aubry t
S34 brad tS34 debbie tS34 sierra t
Andrea, Aubry, Brad, Debbie, & Sierra



  • Sierra Dawn Thomas is the only person to compete in this challenge twice. She won both times she competed.
  • Both teams that won this challenge were the Blue Team.


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