The six remaining castaways compete for a reward that includes a visit to a gorilla sanctuary by retrieving balls from a swamp and then tossing them into a basketball-like hoop. For immunity, the players must re-create an African tribal mask while blindfolded. At tribal council, the hidden-immunity idol comes into play as another person joins the jury.
The seven remaining castaways are visited by loved ones from home, and one player proposes marriage. Elsewhere, a castaway claims to have the hidden immunity idol that was supposedly tossed into the ocean earlier in the game; and the tribe members answer questions about Gabon for a chance to win immunity.
The eight remaining castaways each receive $500 to participate in a food auction. The immunity challenge involves carrying bags of blocks across a series of balance beams. The Top 3 finishers then set up their blocks like dominoes in order to raise a flag. At tribal council, the 11th castaway is voted out of the game.
The two teams play a three-hole golf course using a sling instead of a club to win a feast with a local African tribe. Later, the teams merge and compete for individual immunity by testing their fire-making skills. At tribal council, the 10th person is voted out of the game.
The two teams come together for a feast and assume they are going to merge into one tribe. They learn that a hidden immunity idol is nearby and then make a surprising decision regarding it. Later, the teams compete for immunity in an endurance challenge that requires great arm and mental strength. At tribal council, another castaway is voted out of the game and becomes the first member of the jury.
The tribes compete for a reward that includes a feast and letters from home by playing keep-away with large fragile balls. Later, the teams battle for individual immunity by participating in a logrolling competition. Both teams attend tribal council and vote out one of their own.
The tribes compete for a reward that includes pastries and coffee by chasing each other around a track while carrying a weighted replica of a snake. For immunity, the teams retrieve parts of a flagpole by going through various obstacles and must be the first ones to put the pieces together and erect their team flag. One person is voted out at tribal council.
The tribes rank their team members in order of importance and then, based on the information, new teams are selected school-yard style. For immunity, the castaways play a water-based game that is a combination of water polo and lacrosse. At tribal council, another person is voted out of the game.
Tension builds in one tribe when food starts to run low because of some teammates overeating. In the reward challenge, one female player is roughed up so badly that it could cause her to be cast off. The third person is voted out at tribal council.
The 17th season begins with 18 castaways marooned in Gabon, Africa, and divided into two tribes: Fang and Kota. For immunity, the teams maneuver through an obstacle course while chained together and then solve a puzzle. The first person is voted out at tribal council. Next, the tribes compete for fishing gear and immunity by each pushing a heavy boulder through a race course and retrieving keys that unlock a chain fence. At tribal, the second person is sent packing.