Grand Cayman- A pleasant surprise. Took a tour of the island for $10 PP off the dock for about two hours. Great deal. We went to Hell (which really does look dark and creepy), a dolphin park (We were given about 30 minutes of time to go close to the dolphins, although not in the water, for free), a rum factory with complimentary tasting, and a flurry of other things that I can't remember at the moment. We walked through the town and had a nice lunch on the beach. Very westernized and it resembled a lot like a modern beach town in the US, which was nice but a little disappointing since the real culture of the island can't shine through.
Cozumel- In Cozumel, we took a ship excursion for $79 PP to go to Tulum, the ancient Mayan ruins. We took a 30 minute bumpy ferry ride to Playa del Carmen, and from there took a 50 minute bus ride to Tulum. Once in Tulum, we had a good two hours there, half of which was guided and half of which was free time to explore. It really is breathtaking how such an ancient civilization could be so advanced and accomplish so much in architecture and silence. Must see. We had a lunch that was said to be local, but tasted like something you could find at a cafeteria at home. Great experience, however the excursion was 8 hours and we couldn't see Cozumel.