帮忙写一份英文的书面表达

Dear Peter,
I am glad to hear that you will come to Beijing.So now I am writing to tell you something about Beijing.
Beijing, capital of our country , has a population of more than 10 million. It is convenient to travel in Beijing as the traffic is not so heavy.Also people in Beijing is very friendly and helpful.
Beijing is also a city with very long history. There are countless parks and museums.
Coming to Beijing,you must go to the GreatWall and the Summer Palace.