At our base in the marina (Marina Pêro De Teive Avenida João Bosco Mota Amaral, 9500-771 Ponta Delgada)
The rib boats are a lot of fun. Saw a few whales and a bunch of dolphins. Check-in was super fast, the briefing was informative and quick, and we were on our way shortly after the appointed time. I recommend this excursion and company without reservation.
These guys are real professionals, they took care of us during the whole trip. The problem is with people, who don't listen: we were told to grab a throw-up bag just in case. Some didn't, and they messed-up the deck since the sea was rough. Otherwise I can wholeheatedly recommend CheckYeti for this sea adventure.
They really love the ocean and their work. All the young people on our boat through our trip was amazing. We see two different kind of whales and a lot of dolphins. Definitely take a zodiac boat. Its faster and more realistic. It was windy, but they gave us solid raincoat and everything was just perfect.