User blog comment:DaTruPeeper75/how to get to floating island WARNING SPOILERS/@comment-45063100-20200907235442

The way I did it is pretty simple.

Go to the back of the Aurora, at the left engine thingy (when facing forwards, towards the front of it, on the left). This points in nearly a straight line to the floating island, and since you can see the Aurora from pretty much anywhere on the map, you can easily get to/from it.