Carol, our friends Tim, Kathleen, Tom, and Cheryl, and I all had a great time. We did 5 days of beach time, then rented a sailboat for a week to explore the second largest coral reef in the world, then spent 4 days inland to the north.
On the spur of the moment, two days ago we rented a car and driver to go into Guatemala to see the ruins of the Mayan super-city at Tikal - awesome! When I was in high school, I took about a 3000 mile train ride down to Merida to see the Mayan ruins at Chichen Itza. A very long day driving to Tikal was easier than that train ride!