In this ESL lesson plan for adults and teens, students watch a short cinematic documentary about a boiling river in the Amazon. It includes discussion questions, conversation, and other activities about the Amazon River and Amazon Rainforest. Students also learn some important vocabulary terms and phrases from the video. The grammar exercise features the difference between "as" and "like". There are additional speaking tasks, as well as a quiz and review section with a bonus activity.

When Andrés Ruzo was a boy, his grandfather would tell him tales of a mythical city of gold deep in the heart of the Peruvian jungle. Though never believing the stories to be true, the legend of the lost city stuck with him into adulthood. Years later, as a geothermal scientist, Ruzo decided to investigate. To his surprise, he discovered an incredulous river deep in the Amazon, with water hot enough to kill a human. Historically a place of pilgrimage for shamans and sorcerers, the river now faces increasing threats from poachers, loggers and squatters. Now, Ruzo is working hard to protect it.