My top priority in Grand Cayman is Stingray City. I checked into Captain Marvin's and they do have the lowest price; however, Captain Marvin's is just the trip to Stingray City - you would not see any of the rest of the island. Has anyone done the DCL excursions? The Island tour includes Seven Mile Beach, Old Homestead, the Turtle Farm, and "Hell" while the Discover Cayman Tour only includes "Hell" and the Turtle Farm.