In this challenge guide of Fortnite, you will learn how to catch a fish at Heart Lake. It will provide you with the exact location of fish in Heart Lake.
The Heart Lake will be found on the top side of the map, as shown in the map below.
When you get there, you will find a couple of docks. Make your way to any dock, and there you will find a fishing rod inside a big basket.
You have to press the X button to break it and grab the fishing rod when you get to it. You may also find a harpoon gun, so grab everything you find from there, and then you have to look around in the lake to find fish. Catch them with the help of the fishing rod, as shown in the image below.
You have to catch the fish to complete your challenge.