The final three walk to the flare muskets with their arms around each other. They aim at the ship and fire. Shockingly, they successfully set the shipwreck on fire. Hmm, mysterious! What great aim they must have, to make the ship start burning spontaneously like that. Once the flames have begun, Lill gives a salute. Because she likes, you know, fully a third or so of those people. The shipwreck burns some more. The torches go up in flames. (Irony!) The final three watch the shipwreck continue to burn for a while, because the show is two hours long, and we're only halfway home.
On the flip side of the commercial break, we see that the contestants have paddled to the next immunity-challenge site. It involves three floating platforms, with Jeff in a boat nearby. Basically, it's a balancing endurance challenge. The water is pretty choppy, so you pretty have to much crouch on your platform, and you can't touch down with your knees or your butt, so you're pretty much in a frog stance, holding on with your hands, for as long as possible. Ah, another chance for Jon to play the reptile card. ["Or amphibian, if you want to get technical." -- Wing Chun] It's not going to work this time, either. Whoever wins immunity will get to the final two, and will get to pick the other person who goes to the final two. They all get into their squat positions. The most notable thing as it gets underway is that Lill and Sandra are both able to do this basically flat-footed, with their entire bottoms of their feet on the raft, while Jon is stuck on the balls of his feet.
Fifteen minutes in, Jeff checks on how everyone's feeling. Jon's feet are numb, he reports. Lill says she feels "really darn good." Soon thereafter, Sandra is hit by a wave and lands on her fanny. Oops. She's out. ["To me, it looked like she might have thrown it, a little bit, but that's just idle speculation. That strategy worked out pretty well for Richard Hatch, way back in the day." -- Wing Chun]