I always felt that one was a bit problematic. If these dolphins are indeed Cetacean Ops, than it means that people are allowed to go to Cetacean Ops for no reason but to gawk at the dolphins as they do their jobs. Which sounds unbelievably messed up. These dolphins are members of the crew doing jobs specific to the function of the ship. Yet, people who otherwise have no business being there are allowed to go hang out and gawk at the dolphins as they do their jobs? Geordi wouldn't tolerate someone showing up in engineering just to gawk at everyone doing their jobs there. Dr. Crusher wouldn't tolerate someone hanging out in sickbay who wasn't staff or in need of medical attention. Picard or Riker wouldn't tolerate anyone on the bridge who had no business being there. So why is behavior that's frowned on everywhere else on the ship allowed in Cetacean Ops? It's only gotten worse with Lower Decks actually stating people on the Cerritos go for swims in Cetacean Ops for recreation.