Survivor: Panama
Immunity Challenge: Each tribe member will stand on a very small perch at the top of a 20-foot poll in the water. When the game starts, they will lower a bucket into the water to fill it, then pour from the bucket into a very narrow bamboo shoot. As the bamboo shoot fills up with water, it will raise a flag. Once the flag is high enough to reach, they must carefully grab it and raise it above their head in order to win Immunity.