In ponds and lakes. Use the terrain tool for water and dig a pond. The bigger it is the easier it will be to fish in it.
Chat with our AI personalities
go spear fishing in the big pond and after 3 turns youll find it on your spear
go to tidal pool use bamboo fishing pole to fish
Go to the mayor and talk to her.
To get the fishing rod you have to finish the game first. Then when you finish you have to do a riddle from the major and when you get it right go to him later and you will get a starter fishing rod from him.
Go fishing or buy one through a fishbowl, or the supermarket.