When we went to Grand Cayman our group split up. Our 2 friends did the Cayman Half Shell tour (hell, boatswain's beach, rum factory, governors mansion) by Caymaninanutshell.com, the check in is at the waterfront centre at the same location as Capt. Marvins. They said the tour was well worth the money and had some great pics. My husband and I after reading many reviews on tripadvisor.com decided to book a snorkeling excursion with captain marvins. It was a great excursion, we had about a 5 min, ride to captain marvin's house to board our boat,It was nice because there were probably only 20-25 of us passengers (Capt. marvin's doesn't pack them onboard like some other places we saw.) Mikey, Froggy and Javier were the crew members and photographer. They were all very friendly, knoweledgable about what we would see,and how to interact with the stingrays,fish and coral, and were glad to assist everyone with their gear getting down the ladder etc. There were also free non-alcoholic refrehments in a cooler which you could help yourself too. The boat was clean and well maintained and there was a small bathroom downstairs. We sailed about 30 mins out to the sandbar to play with the stinrays. I had done this last year in the bahamas in Nassau, and Stingray City in Grand Cayman was way better. The water was so clear you could see the bottom no problem, and the interaction with the stingrays was much better.It was my husband's first time and he was a little nervous and they helped him and everyone else be more comfortable with the rays, we were there for about 45 mins. After that we went to the barrier reef to snorkel, there was lots of interesting coral and only a few fish. From there we went to the coral gardens which was amazing, once again the water was amazing, and as soon as you looked in the water there were schools of tropical fish everywhere and a lot of interesting coral. When we got back to georgetown it was time to get on the boat tender. We were very impressed with Capt. Marvin's and the Water in G. Cayman, but honestly besides that the Island held no interest for us as we didn't go there to spend thousands in jewelery.