So you want to do some big game fishing and get away from all the robbing and killing in red dead redemption 2 ?
But where to start ?
Well, first you are going to need to head over to this position on the map on the shore of Flat Iron Lake in the Heartlands territory and talk to a fisherman named Gill fishing off the end of a dock
Once you talk to him, he will take you inside and tell you about him needing your help catching fish to stuff also at this time he will hand you a map of legendary fish locations to help you on your journey.
OK, you've got the map, but you need the bait so hop on your horse and head towards Lagras shown in the photo below at this location you will see a bait shack where you can buy special lures for large type fish.
Now you are set look at your map again and pick a fish to start with, I decided to start with the nearest location just across the water from the bait shop the location is shown below if you are having trouble locating it, but be warned Gators roam these lands and will attack as riding through so be ready!
Congratulations , you've got the legendary fish now all you have to do is take it to a post office and mail it to Gill for a reward !