|Game||Ecco the Dolphin|
|Objectives||Find the exit.|
|Previous Level||Bay of Medusa|
|Next Level||The Vents|
|Typical Creatures||Common Jellyfish, Puffer Fish, Snail, Eight Arms, Clam, Toxic Clam|
The Undercaves is a maze level. The Key Glyph above the start must be first touched to activate the Barrier Glyph on the right. Travelling left and down will lead Ecco to the Snail wall which can be destroyed by charging. A Wentletrap is found here and must be used to destroy the rocks below, but before this a Key Glyph can be found in the passage above after some Puffer Fish. Breaking these rocks gains access to the area where Eight Arms lurks, and Ecco must swim slowly to pass, taking into consideration air. After deactivating the Barrier Glyph below the end of the level is in sight.