Has anyone taken the "Beginners SCUBA Diving" shore excursion in Grand Caymen? I will be going on the Carnival Liberty this October and will have completed the PADI open water SCUBA divers course here locally that includes the pool training. To complete the certification, I need 4 open water dives that my school says I can do while in the Caribbean (they will give me the referral paperwork), but what does this shore excursion entail? We're only in Grand Caymen from 7a to 4p, so I'm not sure that will be enough time to get the required 4 dives in. I'd hate to come back from my cruise and not have the requisite dives needed. Am I better off to skip the ship's shore excursion and contact a local dive company in Grand Caymen and just go with them, or will the beginners SCUBA diving shore excursion get me the required 4 open water dives?