We went to the Delfinario on a Saturday morning in January. I was disappointed that it was not better attended, because it is a really fun place for families and animal lovers! There were maybe 25 people at the place while we were there. Maybe if billboards were placed at the exits of Highway 15, it would get more notice? Price of admission is 180 pesos for adults; very cheap compared to Sea World (etc) in the U.S.. For additional cost, you can get personal dolphin encounters, and photos with dolphins or sea lions. There is a dolphin show, a sea lion show & interaction, viewing areas for these animals, and a fin whale skeleton; plus a small snack bar. Combined with a day at the beach, this would be a memorable experience for any family! From reading about it, I understand that the Delfinario does therapy for kids with various developmental disabilities during the week, and is open to the public on weekends.The animals looked healthy and happy. The caretakers/trainers seem very engaged. We especially enjoyed Maria, who is shown here with Ulises the Sea lion. Enjoyed our experience; and would like to see them add a few more features, such as a tank with regional fish, and a touch tank with tidal creatures, so kids could learn more about the wonderful Sea of Cortez.