The Cortex Island is an isle located in the coast of the Wumpa Islands that previously served as Doctor Neo Cortex's primary base of operations in the Crash Bandicoot series and the exact location of his lair known as the Cortex Castle.
The castle on the island was destroyed after the events of the first Crash Bandicoot game, but it was rebuilt and briefly used by Cortex in Crash Nitro Kart before being abandoned again.
The island itself is also home to an ancient temple that resembles the Mojo Temple on Wumpa Island.
- The name of Cortex Island is a pun to that of a real-life island.
- Despite being a major location in past Crash Bandicoot games, the island hasn't got a official name. Although it was once referred to as N. Trapment Island by some fans and those at Bioware who worked on the Nintendo DS version of Crash of the Titans, this name has not been confirmed as the island's true name.
- This island is a reference to other wasted islands/worlds ruled by villains such as Crocodile Isle.