How to fish?

[Fenix]

I mounted fishing rod, but nothing happened yet.

[Fenix]

I have read all "dev log", but didn't find anything about it.

[Fenix]

Find it.
http://underrail.com/forums/index.php?topic=308.0

I've also implemented fishing. Actually, this was functional long time ago but due to some major changes to the game I had to disable it for a time. For now you'll only be able to fish for blue eels for a quest, but I'll add more fishing goodies later and probably some blueprints that make use of those. You also have a chance to fish out other random (and some not so random) stuff in certain places.

Still don't understand how to fish and where are these places?

[LazyMonk]

You have to wait until the string starts moving and then you click the rod.
Some areas are better to fish than others. Try going nortwest before entering the Junkyard.

[16bitAindo]

To fish you have to plant the rod in place and then click on it once. Once you have done that you need to wait for the rod to move up and down as if there is something tugging on the line. When this happens just click on the rod again to reel it in. Do remember that you can't find fish in all of the places you can cast your rod.

[Fenix]

Yep. Just fish some headgear and steel botts yesterday. And something more. ))