Lake Tramonto is a lake centered directly north of the FAYZ. It is believed only approximately a quarter of it remains inside the FAYZ wall. In Plague, Sam, Jack, and Dekka were sent by Albert to Lake Tramonto to discover what lay there and if it was an appropriate source of water. At the end of Plague, kids chose whether to stay in Perdido Beach with Caine as their King, or go to Lake Tramonto with Sam. About one-third of the kids went with Sam.
During Fear, about a third of the FAYZ's population is living at Lake Tramonto in various boats. They are eating from a garden grown by Sinder, and have chosen Edilio as their mayor. The population grows as most of the refugees from Perdido Beach join the group at Lake Tramonto.
During Light, Gaia (the Gaiaphage) discovers Lake Tramonto on her journey to kill everyone in the FAYZ. Using Sam's light powers, she burns many of the boats and houseboats. Many residents die in the attack, including Dahra Baidoo, Justin, Jezzie, and Bix. Other residents, such as Roger, go missing after the attack. 25 others are severely injured during the battle, and are send back to Clifftop Hotel to be healed by Lana.