How long are you in port? The Caymans were tough for us this year on the Inspiration, we were in port for maybe 6 hours. We Dove Devils Grotto right off of Georgetown, nearly across from the HardRock, Good snorkeling there, lastly that day we were in post with six or seven other cruise ships so that also limits your ability to travel far from Georgetown due to limited taxis and trafficjams, and yes...some pretty good jams