Secret Worlds: frost cave

Discovered by

Stand on the highest platform in the room (the one with the crates). Use a charged ice beam shot to freeze the glider when it is in a position close to you. Space jump onto the glider and wait for it to unfreeze. Move onto the front of the glider. At one point in the glider's flight path, part of the glider will clip through a wall. With a bit of luck, you will clip through the wall with it, and into the secret world.
Jumping when you contact the wall may help the process.