Hello. I accidentally found a bug with my friend. If we use fishing rod on the ground, the crosshair will be maximally at the bottom, then the hook from the rod will fly under the ground (where there is water) and you can normally fish. From what I noticed it does not work on the road, in buildings etc. Only on the ground.
this works everywhere u just need to time it right
In all the time that I played I never noticed that myself. And I was one of those who thought that fishing from sky bases was the best thing in the world.