If you want to capture Dorado in Animal Crossing: New Horizons, you may find that you have some hunting activities on hand. Before we study the details, here are some important information about the fish itself and where to find it: 

Time: June to September, 4 am to 9 pm.
Location: River
Shadow size: large
Value: 15,000 bells
In Animal Crossing: New Horizons, Dorado is one of the most valuable fish, priced at 15,000 bells. You can go ACItems to buy Cheap Animal Crossing Bells. For islands in the northern hemisphere (December to March for the southern hemisphere), fishing is only done from June to September from 4 am to 9 pm. 

Because Dorado is a river fish, it is relatively easy to spot when it swims around. It is one of the only big fish that appears in the river, so be sure to observe its time from any big shadow you see. You don’t need to be at a high place, so please feel free to check every part of the river on the island. 

If you are very keen to quickly capture Dorado, we also advise that you make lots of bait. Build a good supply and you could kill time to throw the bait and catch any big fish that appears. If you spawn smaller fish, you may catch them or scare them by sprinting nearby.

We recommend catching the most because there are other rare fish around. When you are in the river, you may also be lucky enough to pick up an Arapaima.

Now you know how to capture Dorado in Animal Crossing: New Horizons, all that remains is patience and good fishing skills.