Genshin Impact version 2.1 has now introduced the Fishing System, which allows players to catch various types of exotic fish in fishing spots scattered all over Teyvat. To catch these fishes though, you will need the proper equipment like the fish rod and bait. Here is a complete list of fishing equipment for Genshin Impact.
How to Get A Fishing Fishing Rod in Genshin Impact
How to Get
Buy from the Fishing Association located at Mondstadt.
Buy from the Fishing Association located at Liyue.
Buy from the Fishing Association located at Inazuma.
Lunar Realm Event prize.
The most basic fishing rod. Get it from the Exploding Population quest.
There are certain fishing rods that are best used in specific regions. Windtangler is best suited in Mondstadt fishing spots, Wishmaker is the best for Liyue, and the Narukawa Ukai is best used in Inazuma. It is more likely where it was purchased anyways.