We were lucky that it was a private tour... However, Diego knows a lot about the subject, is very friendly and very helpful.
Please note that you will be taking a public bus and the trip takes about 25 to 30 minutes.
Diego knew a lot about the subject and also took the weather and wind into consideration, and the itinerary was planned based on that so that we could have the best experience.
For example, in this case, we did the snorkeling first, since he said that the wind was coming and with the swell we wouldn't be able to see fish.
He took pictures of us with his GoPro and on his cell phone and gave them to us for free!