Heidi CanarelliHenderson, NV, United States
Khoa was a charming, intelligent tour guide. He met us at the airport with a large sign and then quickly whisked us to a new, air conditioned van. His English was a little difficult to understand at first but he was careful to repeat information until we understood. His efforts were more than commendable and in a short time we were very comfortable understanding him. He made the tunnels very interesting and we had a terrific day.