I booked a citadel tour and My was our guide. She was extremely knowledgeable, friendly, and interesting; she answered all of our questions and made for an excellent tour, keeping everyone engaged. The imperial city is beautiful, and I enjoyed the visit enough to book a second one to visit the emperors' tombs. My was my guide again, and her historical knowledge is impressive. I can't recommend this tour highly enough, definitely a great way to learn about the history of Hue. I also got advice on other things to see in the city, and she wrote down an itinerary for a food tour that I could do, which was really appreciated!