Fire and Water

Fire and Water (also known as Fire and Rain) is a recurring individual immunity challenge that debuted in, and later recurred in.

Rules
All castaways are stationed at a fire scale. Each structure is a seesaw with two buckets. One end had a bucket for building a fire, while the other has a bucket filled with water but with a hole at its base. The castaways first make a fire in the fire bucket. Once it is sustainable, the castaways fill the water bucket with water from a nearby river or ocean. When there is enough water, the weight of it lifts the fire bucket up to reach a fuse. The first castaway to light fuse, igniting a fire at the top of the scale wins the challenge.

In, an additional stipulation added that running out of matches eliminated a contestant from the challenge.

History
The challenge made its first appearance in  as the Final Seven immunity challenge. All contestants was relatively even. Nick Brown was the first person to get water, Tina Wesson quickly followed. Eventually, Colby Donaldson was the last person to start fetching water. Keith Famie almost won the challenge, but his fire bucket did not reach the fuse. In the end, Colby light is fuse first, winning his first of many individual immunity.

The challenge was reused in  as the Final Six immunity challenge. Everybody, except Amber Brkich, managed to make a fire. However, the wind caused the fires to blow out. Eventually, Amber, Jenna Lewis, Rob Mariano and Rupert Boneham all ran out of matches, eliminating them all from the challenge, leaving Tom Buchanan and Shii Ann Huang battled it out for immunity. Ultimately, Big Tom managed to reignite his fire and started to get water again. By the time Shii Ann was able to build a suitable fire, Big Tom had won immunity.

Trivia

 * Amber Brkich is the only castaway to compete in this challenge twice
 * Only men have won this challenge.
 * Only three women competed in the challenge at a time.