The originally scheduled tour was postponed and I only received an email notification that morning, which was a bit sudden. Luckily, I had chosen the afternoon session. The next day, we gathered at Pier F-28, and the staff arrived late as well. For those who haven't snorkeled before or aren't strong swimmers, it takes a bit of time to adjust to being in the water. We saw quite a few sea turtles, and the scenery was beautiful.