We had a wonderful time. The captain of the boat was knowledgeable and showed us many sites along with the tour guide. We went to the shark lagoon, Las Grietas, and saw the blue footed boobies!
Very well organized from the start (trying on the wetsuit and snorkeling equipment before leaving), lucky to be the only traveler for the day, I had a private guide, good visit and explanation of the area, great food and an empty lagoon to snorkel in with giant turtles completely for myself. I couldn't ask for more!