The tour guide will contact you via WhatsApp in advance. Chinese friends can register early, as it's useful for many travel destinations. Our guide, Javid, is very handsome and friendly. He can explain things in both English and Russian. He knows a lot about history and culture, and he explains many attractions in great detail, allowing you to learn much more history than if you were exploring on your own. He's also very talkative; the other people in our group chatted with him almost non-stop, which made for a great experience. My English is quite basic, so I could understand about 60-70% with the help of Microsoft Translate and my prior research. (This is due to my personal English level, not because the guide's English is poor; his English is excellent! The other people in the car really enjoyed talking with him!) If you have good English, you should definitely book this tour. Even if your English is average, you can still book it. The price, including tickets and transportation, is an excellent value! The scenery is beautiful, and it's definitely worth seeing!