We booked this tour last minute. It’s not a “guided-tour” but more like they’re providing transportation and tickets to visit Vesuvius and Pompeii. The driver was Mauro which was very nice and professional and the the group was very small (8 of us). We got to spend about 2 hours in Vesuvius and 3 hours in Pompeii. Be prepared to walk a lot to explore both sites in one day.