Wumpa Island is the least inhabitable of the three Wumpa Islands. It is characterized by the large Uka Tree sitting atop its mountains, its dense jungles, large mountains and ruins. The island features the most ancient lemurian ruins of the three, a large volcano and a vast underground mining facility. Despite this, there are no permanent inhabitants besides wild animals until Crash of the Titans.
Since Crash of The Titans, the Bandicoot family (Crash, Crunch, Coco, and Aku Aku) have lived in their house on Wumpa Island. It is unknown if their pets Polar, Pura, and Baby T live there or not. Since Crash: Mind over Mutant, the titans inhabit the island at various places: the Junkyard, the Ratcicle Kingdom, Mount Grimly, and the Wasteland. The remains of the Doominator and the Space Head are currently residing in front of Crash's house. This level in particular has the most mutants of all the other levels in the game. It also has two Titan Heroes.
Wumpa Island is home to the Uka Tree, a gigantic tree that served Uka Uka's evil purposes. The tree was so vast that it almost covered the entire top portion of the island itself, becoming one of Wumpa Island's most iconic features. In order to prevent Uka Uka from spreading his malice, Aku Aku managed to lock him away within a temple for many years. However, Uka Uka eventually made contact with Dr. Neo Cortex and instructed him on how he can achieve world domination.
In the first game, Wumpa Island serves as the second island Crash has to go through on his quest to save Tawna from Neo Cortex. It is home of six levels and two boss fights. In Up the Creek, Crash climbs up the mountain through the waterfall, sprang from an ancient carving. Ripper Roo is fought atop the waterfall. Afterwards, Crash explores the jungle-engulfed ancient ruins in The Lost City before heading inside the ruins in the aptly named Temple Ruins level. In Road to Nowhere, Crash walks through a foggy bridge sitting high atop the ground. Sunset Vista is another outdoor ruins level, which Crash climbs up to the top. Finally, Crash confronts Koala Kong inside a lava cave, who is in charge of the underground mining facilities.
Crash of the Titans
Crash, Coco, Crunch and Aku Aku move to Wumpa Island, where they have to prevent their new home’s destruction by Cortex’s Doominator, which Cortex had parts of Wumpa Island harvested for. One of the resources was the mojo was used to fuel a unique Evolvo-Ray inside the Uka Tree which creates powerful mutant Titans. However, with Aku Aku’s help, Crash finds a way to control the Titans and use their power to his advantage. After defeating a Yuktopus atop the Mojo Temple, he goes to confront Tiny Tiger at the island’s lumbering and mining grounds. Later, Aku Aku teleports Crash to the Uka Tree to locate Uka Uka and Nina Cortex. At the end of the game, the Doominator crash lands near Crash's house.
Crash: Mind Over Mutant
The island re-appears as an explorable environment in the game. N. Gin has situated himself in a lab hidden in the jungle. The Grimly Hero also resides in a large hollowed-out tree hidden in the jungle. The island borders the Wasteland and the Ratcicle Kingdom. The crashed Doominator contains a teleporter to Cortex's Space Head, which also ends up crashing near the Doominator by the end of the game, with Coco lamenting that she will still not "clean up" the trashed machines.