city tour I do not recommend. the side was very nice. We did not know we were not going to the tower until they dropped us off at an office building. Tour director needs to be clearer especially when they drop you off at one location and pick you up at another without telling you.
You only get 30 min. to explore each of the islands. It is just enough time to look into one store and then get back to the boat. It is next to impossible to hear what she is talking about over the speakers in the boat.
Excellent. Good idea to pick up a book that shows you the before and after of the ruins. Or at least read up on it, there is so much to know.