Our guide, Serafina, driver Siggie, and Lauren were excellent and engaging, but we were on a tour that was primarily a group of friends celebrating someone's birthday. For the entire tour, there were several women who just couldn't stop talking and were, at times, louder than the guide due to some celebratory drinking. While I have no issue with someone having a few drinks on a tour like this, their inability to shut up and listen, ruined what could have been a great experience. Someone from the tour company (guide/ driver/ Lauren) should have been more vocal in asking the loud passengers to quiet down, or offered refunds to those not associated with the party. There were a few attempts, very late in the tour to quiet the offenders, but it was far too late at that point. My father in law has hearing issues and all of the background noise ruined it for him and both my wife and I were irritated with it as well. I've waited more than a week to write this, so that wouldn't use inappropriate language ;-) In the future, maybe consider sending celebratory groups out on their own.