There is also a site, called YeQuYuan, which is a place for holidays. There are some stone chairs and tables in it. Even the native people like to come here for weekends. ( Because there are fresh air and high level negative oxygen ion in this area.  It is just like a oxygen bar. Some girls and boys come from the GuangXi province to show their native dance, such as the bamboo poles dance. Everyone can try it . )

The sentences in parenthesis are used for explaining why it attract native people to come here.
"high level dense negative oxygen ion" is about that the mount of this thing can show the qulity of air. The more  negative oxygen ion air include, the more fresh air is.
You know public house. In China, people call it , wine bar,which only sales alcohols. So if the bar only sales coffee, we will say "coffee bar". Such as juice bar, internet bar and so on. So you can know the oxygen bar.

Do you know "the bamboo poles dance "?

So far this is the final.

Now, we are walking to the first site. Please look over there. There is a large waterfall that is 15 meters wide and 20 meters high. The thing about this fall is that it has never run out of water, even in the dryest season. The water comes from the peak of EMei Mountain, which is 1700 meters high, and is the second highest mountain in TaiNing . The main current merges with other streams and flows into the DaJin lake. Then, the fall is formed. If you get close to the fall, you will  feel the cool mist touching your face. Some people say It seems to be a natural massager. In a moment , we can enjoy this feeling as much as you would like. Before we do that, I want to introduce another place. It is on the top of the fall. There is also a site, called YeQuYuan, which is a place for holidays. There are some stone chairs and tables in it. Even the native people like to come here for weekends. There are fresh air and high level negative oxygen ion as a oxygen bar. Some girls and boys come from the GuangXi province to show their native dance, such as the bamboo pole dance. Everyone can try it . Alright, please don't forget your properties and get ready to get on the bank.

Also, I suggest using a direction when guiding someone's view, such as Please look over to our left.
If you can explain the section in medium purple, I'd gladly help you with the wording for it.
If you have any questions, please let me know.

TRANSLATION

Now, we are walking to the first sight site. Please look over there. There is a big large (water)fall that is 15 meters wide and 20 meters high. There is a feature The thing about the this fall is that it has never no run out of water, even in the dryest season. The water comes from the peak of EMei Mountain, which is 1700 meters high, and is the second highest mountain in TaiNing . The main current was togoether merges with other streams and went flows into the DaJin lake. Then the fall was formed Then, the fall is formed*. If you get close to the fall, you will have the nice cool feeling about feel the cool mist water fog touching your face. Some poeple people like to say 'It is seems to be a nature natural massager'. In a moment later, we can enjoy this feeling as much as you would like. But** now Before (we do) that, I want to interoduce introduce another place. It is on the top of the fall. There is also a sight site as well, called YeQuYuan, which is a place for holidays. There are some stone chairs and tables in it. Even the native people like to come here for weekends. There are fresh air and high level negative oxygen ion as a oxygen bar. And Some girls and boys*** come from the GuangXi province to show their native dance, such as the bumboo bamboo pole dance. Everybody Everyone can have a try it . Ok Alright, please don't forget your porperties properties and get ready to get on the bank.

The sections highlighted in medium purple I do not understand what you are trying to express and I don't know what to suggest in lieu of that section.
The annotations in red are corrections.
(The annotations in red and in parenthesis are not necessarily needed, but could be used there if you wanted.)
The annotations in green are alternatives that are more commonly used for the purpose of your sentence.
Striked annotations in turquoise are things you can leave out, as they aren't necessary.
Sections highlighted in orange aren't necessarily incorrect, but in English, there are times for using the alternative words in that sequence.

*  Either "The fall is then formed.", or "Then, the fall is formed."  can be used.
** But can be used to start some sentences, but it is looked at as unprofessional, I'd suggest using alternative terms. Conjunctions such as "but", “or”, and "and" are meant to link ideas; and should be used to do so, but should not be over used. Otherwise, it would seem you lack vocabulary. See how I wrote that last two sentences? That is proper use, while using and alternative term for "or" to start the second sentence.
*** Usually, in Western English, the sequence used with these words are "boys and girls" or "men and women".
When speaking to a group, such as to greet them in a respectful manner, you would use the terms "ladies and gentlemen".