The Unini River is a tributary of the Rio Negro (a large tributary of the mighty Amazon River and the largest black water river in the world), located approximately 210 miles northwest of Manaus, the starting point in Brazil for Amazon Fishing Adventures operations. The Unini River is approximately 400 miles long, with at least 250 connecting lakes and lagoons throughout its course. Its location is such that it can only be reached by private charter plane. The camp is located about 200 miles from where the Unini River empties into the western side of the Rio Negro. This junction is south of Barcelos, a large town known as the tropical fish capital of the world and situated on the bank of the Rio Negro. About 20 miles up river from the conjunction of the Rio Unini and Rio Negro, there are three sets of rapids and falls which prohibit navigation further up river except during the period of highest water levels in the summer months. This inaccessibility affords some of the finest peacock bass fishing found anywhere in the Amazon watershed.

The Unini River has developed the deserved reputation as “The Big Fish River,” as it typically produces large number of peacock bass in excess of 12 pounds – a fish described by many peacock bass anglers as a “teener” sized fish. If you are seeking a fishery yielding a tremendous quantity of small peacock bass, with numbers being more important than size, there are better fisheries than the Unini for you. However, if you are after true trophy fish, few fisheries can compare with this location and operation. Under normal river conditions, you can expect to boat approximately 15 peacocks each week, per angler, over 10 pounds and you will probably miss or lose twice that many fish. Keep in mind, however, that fishing success depends on ones skill level, weather conditions and water level and no guarantees or assurances can be made as to your results. All fish are weighed on IGFA certified Boga Grip Scales, the weight verified by both guide and angler.