Keep on Your Toes

Keep on Your Toes is a recurring endurance challenge in Survivor. First appearing in, it will reappear in.

Rules
The Survivors would each stand on a small wooden perch in an a-frame. They would brace a wooden block on their head and keep it in place using the wooden board above them. The structure would force the contestants to stand on their toes slightly, increasing the difficulty. The last person left with their wooden block intact wins immunity.

History
In, the challenge came down to Spencer and Tasha. After 1 hour and 30 minutes, Tasha's block suddenly felt, given Spencer the win.

The challenge will reappear as the third Individual Immunity Challenge in.

Trivia

 * Both times this challenge was used, it was in a 3-tribe season with a black merged tribe.