Each tribe works to navigate a large boulder through a series of obstacles (either natural or man-made), whilst accomplishing small tasks along the way (such as collecting flags or keys). The first tribe to get their boulder onto their designated pedestal wins the challenge.
The challenge debuted in Africa as a Reward Challenge. The tribes worked to navigate the ball through natural obstacles, with tribes collecting flags along the way. Boran won the challenge, and received 100 gallons of potable water and organic shampoo.
The challenge reappeared in Gabon, where it was used as a combined Reward/Immunity Challenge. In addition to maneuvering the boulder through a series of gates, the tribe had to collect 2 keyrings suspended in the air (requiring a tribemate to climb onto the boulder to retrieve them) which was used to unlock a series of chains that blocked the final gate. Despite a neck-and-neck race, Kota won the challenge, gaining immunity and fishing gear, sending Fang back to Tribal Council.
"The Gods Are Angry"
"Want to See the Elephant Dung?"
- This challenge has been used in both seasons filmed on the African continent: Africa and Gabon.
- Only red and yellow tribes have competed, with the yellow tribe winning the challenge.
- The eventual Sole Survivor has always been on the winning tribe.
- The boulders were made of fiberglass and weighed approximately 600-700 lbs.