How do I unlock the Legendary Fish map?

To unlock the Legendary Fish map in Red Dead Redemption 2, you must first progress through the story and complete specific missions. The Legendary Fish map is tied to the Stranger mission ''A Fisher of Fish,'' which becomes available in Chapter 3. This mission is given by Jeremy Gill, a fisherman who resides in a cabin near Flat Iron Lake, southwest of Rhodes. To start the mission, you must visit his cabin and interact with him.\n\nBefore you can access the mission, ensure you have a fishing rod. You obtain the fishing rod during the main story mission ''A Fisher of Men'' in Chapter 2, where you take Jack Marston fishing. If you missed this mission, you can still acquire the fishing rod by purchasing it from a general store or by progressing further in the story. Once you have the fishing rod, you are ready to begin your journey to unlock the Legendary Fish map.\n\nTo find Jeremy Gill, head to his cabin located on the western shore of Flat Iron Lake. The exact location is marked on your map once you are in Chapter 3. When you arrive, speak to Jeremy, and he will explain his quest to catch all the Legendary Fish in the game. He will give you the Legendary Fish map, which marks the locations of all 13 Legendary Fish scattered across the game world. This map is essential for tracking down these rare and challenging catches.\n\nCatching Legendary Fish requires specific strategies. Each fish has a unique location and can only be caught using special lures. You can purchase these lures from the bait shop in Lagras, a small town in the Bayou Nwa region. The shopkeeper, Gill Landon, sells three types of special lures: the Special Lake Lure, Special River Lure, and Special Swamp Lure. Each lure corresponds to the type of water where the Legendary Fish reside. Make sure to buy all three lures before attempting to catch any Legendary Fish.\n\nOne common challenge players face is locating the exact spots where the Legendary Fish spawn. The Legendary Fish map provides general areas, but you may need to explore the water bodies thoroughly. Look for ripples or disturbances in the water, as these indicate the presence of a Legendary Fish. Additionally, use Eagle Eye to highlight the fish in the water, making it easier to spot. Patience is key, as some fish may take time to bite.\n\nAnother tip is to ensure you have enough space in your satchel to store the fish. Legendary Fish are large and cannot be carried alongside regular fish. If your satchel is full, you will need to discard smaller fish to make room. Once you catch a Legendary Fish, you can either mail it to Jeremy Gill from any post office or deliver it directly to his cabin. Mailing the fish is more convenient if you are far from his location.\n\nFinally, remember that Legendary Fish are unique and cannot be caught again if lost or discarded. If you fail to catch one, it will respawn after a few in-game days. Use manual saves before attempting to catch a Legendary Fish to avoid losing progress. Completing the ''A Fisher of Fish'' mission and catching all 13 Legendary Fish will reward you with a unique item and a sense of accomplishment.\n\nIn summary, unlock the Legendary Fish map by starting the ''A Fisher of Fish'' mission in Chapter 3, obtain the necessary lures, and use the map to locate and catch all 13 Legendary Fish. With patience and the right tools, you can master this challenging but rewarding aspect of Red Dead Redemption 2.