Captain
Mauricio Oñate

Member since January 2019 Buenos Aires, Argentina
Background
I've been fishing since I was 3 years old, and sailing since I was 18 – now I'm over 50 years of age, and I have fished and sailed in waters all over the world! I practice almost all types of fishing. I manage and direct my own fishing, nautical and tourism services, and graduated in Social Communication and Counseling. During part of my working life I worked in corporate companies, managing the commercialization of services with global clients, which has led to me becoming fluent in 3 languages. When I go on vacation, I choose destinations where I can combine my free time and plenty of rest and relaxation with...fishing!

Hey, I'm Captain Mauricio Oñate

Buenos Aires, Argentina
Background
I've been fishing since I was 3 years old, and sailing since I was 18 – now I'm over 50 years of age, and I have fished and sailed in waters all over the world! I practice almost all types of fishing. I manage and direct my own fishing, nautical and tourism services, and graduated in Social Communication and Counseling. During part of my working life I worked in corporate companies, managing the commercialization of services with global clients, which has led to me becoming fluent in 3 languages. When I go on vacation, I choose destinations where I can combine my free time and plenty of rest and relaxation with...fishing!
64
Reviews
42
Fishing Reports

My Charter Listing

Buenos Aires Delta Aventura

Excellent
5.0 / 5
(64 reviews)
Buenos Aires
 Instant Confirmation
Trips from US $242

Fishing Reports

Lots and lots of golden dorado. In Bueno
Lots and lots of golden dorado. In Bueno
Nov 3, 2025 Buenos Aires
Today we're going to talk a little about numbers! When we set out, the tide was at 1.80 meters above sea level and going out. We returned with it at 65 cm above sea level. The fishing trip lasted 6 hours. Two fishermen came and managed to land 10 golden dorado on the boat. 4 more got away alongside the boat. Some of the golden dorado were within the average weight for this time of year (2-3 kilos). Others weighed up to 6 kilos and had their stomachs full of fish. We used size 10 hooks with 30 cm steel leaders. We started the morning with 18 live baits. We finished fishing with 4 baits. Which indicates that the percentage of fish hooked was very high. The water temperature is 22 degrees Celsius, and the air temperature started at 20 degrees in the morning and reached 29 degrees by the time we returned. Another beautiful day of fishing, very close to Buenos Aires, on the widest river in the world (Rio de la Plata). See you soon! Captain Mauricio
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Lots and lots of golden dorado. In Bueno
Lots and lots of golden dorado. In Bueno
Nov 3, 2025 Buenos Aires
Today we're going to talk a little about numbers! When we set out, the tide was at 1.80 meters above sea level and going out. We returned with it at 65 cm above sea level. The fishing trip lasted 6 hours. Two fishermen came and managed to land 10 golden dorado on the boat. 4 more got away alongside the boat. Some of the golden dorado were within the average weight for this time of year (2-3 kilos). Others weighed up to 6 kilos and had their stomachs full of fish. We used size 10 hooks with 30 cm steel leaders. We started the morning with 18 live baits. We finished fishing with 4 baits. Which indicates that the percentage of fish hooked was very high. The water temperature is 22 degrees Celsius, and the air temperature started at 20 degrees in the morning and reached 29 degrees by the time we returned. Another beautiful day of fishing, very close to Buenos Aires, on the widest river in the world (Rio de la Plata). See you soon! Captain Mauricio
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We're still on top of the fish!!!
We're still on top of the fish!!!
Oct 20, 2025 Buenos Aires
Today we spent half a day fishing. We had a strong north-northwesterly wind, which made fishing in the open river very difficult. For this reason, we fished at the mouths of small streams along the Rio de la Plata. We used 9/0 hooks with 10-gram sinkers on an 80-pound steel leader. For bait, we used small yellow catfish we caught locally and small "sábalos" we caught with a cast net before setting out. When small golden dorados were biting, we used only pieces of bait. For larger ones, we used live fish with a leader looped over their backs. The river was ebbing all day, much more than usual due to the wind direction. We had many strikes from golden dorados and piranhas of various sizes. We managed to land a few. Around 3 p.m., we began our return to port, with the river much calmer than the one we had experienced during the outbound voyage. As always, if you have any questions, please let me know so I can respond promptly. Thank you very much, and keep the lines taut! Captain Mauricio
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We're still on top of the fish!!!
We're still on top of the fish!!!
Oct 20, 2025 Buenos Aires
Today we spent half a day fishing. We had a strong north-northwesterly wind, which made fishing in the open river very difficult. For this reason, we fished at the mouths of small streams along the Rio de la Plata. We used 9/0 hooks with 10-gram sinkers on an 80-pound steel leader. For bait, we used small yellow catfish we caught locally and small "sábalos" we caught with a cast net before setting out. When small golden dorados were biting, we used only pieces of bait. For larger ones, we used live fish with a leader looped over their backs. The river was ebbing all day, much more than usual due to the wind direction. We had many strikes from golden dorados and piranhas of various sizes. We managed to land a few. Around 3 p.m., we began our return to port, with the river much calmer than the one we had experienced during the outbound voyage. As always, if you have any questions, please let me know so I can respond promptly. Thank you very much, and keep the lines taut! Captain Mauricio
Continue reading
We're still on top of the fish!!!
We're still on top of the fish!!!
Oct 20, 2025 Buenos Aires
Today we spent half a day fishing. We had a strong north-northwesterly wind, which made fishing in the open river very difficult. For this reason, we fished at the mouths of small streams along the Rio de la Plata. We used 9/0 hooks with 10-gram sinkers on an 80-pound steel leader. For bait, we used small yellow catfish we caught locally and small "sábalos" we caught with a cast net before setting out. When small golden dorados were biting, we used only pieces of bait. For larger ones, we used live fish with a leader looped over their backs. The river was ebbing all day, much more than usual due to the wind direction. We had many strikes from golden dorados and piranhas of various sizes. We managed to land a few. Around 3 p.m., we began our return to port, with the river much calmer than the one we had experienced during the outbound voyage. As always, if you have any questions, please let me know so I can respond promptly. Thank you very much, and keep the lines taut! Captain Mauricio
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Buenos Aires, Argentina Big golden dorad
Buenos Aires, Argentina Big golden dorad
Oct 13, 2025 Buenos Aires
We had a wonderful day of fishing! We started the day with the Ain River rising. The water temperature was around 20 degrees Celsius, with a slight north/northeast turn. The first casts were at the mouths of streams that bring clear water and plenty of small fish, which are food for the golden dorado. We set some lines with natural bait (preferably pieces of yellowtail catfish caught locally) and eels. The clear water and the fish's constant predisposition allowed us to also fish with artificial lures. Until midday, we fished in this area and were able to land several small and medium-sized golden dorados and some permit and piranhas. As the tide began to change, we also changed locations and navigated to the banks and channels well out in the river. The wind was also changing and was now shifting to the east/southeast. In this area, we chose to drift fish. We used larger bait (sabalos and medium-sized yellowtails) on lines rigged with steel leaders and without any weights, so that our baits could work as freely as possible. During this second part of the day, we were able to land several dorados weighing between 5 and 7 kilos, which put up a tough fight. The oddity of the day was that spinning isn't usually done in the middle of the Rio de la Plata—the widest river in the world. The chances of landing dorado using this type of fishing are extremely low. Nevertheless, my client began casting, alternating lures and searching at different depths. The point was that we could see the golden dorado hunting quite close to our boat until one of them, about 6 kilos, fiercely took one of the lures. The golden dorado, with quick and powerful runs, forced the angler to completely circle the boat. This is the first time, in 37 years of guiding on the Rio de la Plata, that I've seen a golden dorado take a lure in the middle of the river, using the spinning method. Congratulations to the angler! As always, if you have any questions regarding this fishing, please don't hesitate to let me know. I'll get back to you as soon as possible. Thank you very much, and keep your lines taut. Captain Mauricio
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Customer reviews

Rating summary
Excellent
5.0 / 5
out of 5 stars from 64 reviews
See details
Boat
Excellent
4.9 / 5
Crew
Excellent
5.0 / 5
Experience
Excellent
5.0 / 5
Photos & videos by reviewers (215)
Nice day on Rio de la Plata - several dorados caught
Nice day on Rio de la Plata - several dorados caught
Nice day on Rio de la Plata - several dorados caught
+212
Angler rating
63
1
0
0
0
Anglers claimed
Good experience
98%
Friendly captain
98%
Recommend this charter
100%
Appropriate for children
93%
Satisfied with the boat
100%
Caught fish
97%
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5 of 64 reviews
Ryan R.
Havre, MT
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Best fishing in Buenos Aires

VERIFIED   Adaptive Day Trip (AM) on March 30, 2023
Best 6 hours you can spend in Buenos Aires. The captain is topnotch and know how to fish these waters and has a great since...
Ryan R. recommends Buenos Aires Delta Aventura
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Nathan B.
Cunningham, KY
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Half day trip

VERIFIED   Special 4 hour trip for Nathan Burnett on April 16, 2023
Trip was great. Captain was fun and worked hard to make the most of our trip!
Nathan B. recommends Buenos Aires Delta Aventura
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Fletcher G.
United States
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

What a beautiful day and amazing fishing experience!

VERIFIED   Half Day Trip (PM) on March 21, 2022
The captain took care of all the travel arrangements from the hotel and provided an amazing day on the water. Caught many species...
Fletcher G. recommends Buenos Aires Delta Aventura
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Peter I.
San Francisco, CA
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Full day of fishing FUN!

VERIFIED   Special 8 hours trip for Peter Ince on February 19, 2020
I’ve had my fare share of fishingbooker captains and I can confidently Mauricio is EXACTLY the kind of sailor you want out...
Peter I. recommends Buenos Aires Delta Aventura
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3 persons find this review helpful
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  Mauricio O\u00f1ate Captain replied
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Kyle I.
Chicago, Illinois
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Fishing with Mauricio

VERIFIED   Half Day Trip (AM) on September 25, 2023
Kyle I. recommends Buenos Aires Delta Aventura
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