Ciro was absolutely fantastic as our guide! We saw so many humpback whales including moms with calves and several breaches. They were very respectful of the whales while piloting the boat too. Couldn’t have asked for a better experience in Mazatlán at the end of whale watching season!

We enjoyed the excursion, the staff were wonderful and shared a lot of very interesting facts. We were disappointed we didn’t see any whales, however, we understand our date was pretty late in the season. We’ll try again with ONCA in the future.

This was such a great experience and definitely a highlight of our week in Mazatlán. Communication was excellent throughout the booking process as I had to make a couple of changes to our original reservation. Oscar was our guide and it's evident how passionate he is about oceanography and marine research. He is extremely well educated in these topics and his passion was contagious. We saw a massive pod of about 50 dolphins! Then, after looking and looking for the whales for some time, we made a quick haul about 4 miles offshore and found a pod of 6. It was so spectacular to see them up so close! The rough boat ride (it was quite windy that day) was totally worth it. We stayed with them for quite some time and I never got the sense that Oscar and the other gentleman on the boat with him were just trying to check off a box and get back to the marina. Super, super cool. I loved that you go out on a smaller boat because that means fewer people. There were only 8-10 customers on the boat. Our family of 6 sat up front, another couple sat on the bench in front of the captain, and 2 people in the back. I loved being in the front, although the smaller boat experience may not be for those who get seasick easily, especially if the water is rough that day. So just know that going in. It didn't bother me one bit, but I know it does for some. Highly recommend this company! Go for it!

The day we went out was not great. Quite windy and cold. The crew decided to return to port early for safety reasons. We did come across 3 whales but only one was easy to see and did not stay on the surface. The guide and captain were great with excellent information and tried their hardest to find the whales. It was not because of them we did not see any but was a result of the weather over which they had no control. Onca gave us compensation for the early return. We appreciated that gesture. We will go again and recommend this tour for the enjoyment and education.

The experience was OFF THE CHARTS!! I realize that this was definitely an exception. About 20 minutes into our ride, they found a group of 4-6 male humpback whales FIGHTING over a female. We were able to follow them for an hour. Got amazing video and still shots. Soooooo much fun, and the team was extremely knowledgeable. HIGHLY recommend!!