A country that I want to go would be Iceland because I've wanted to go to the country for a long time and they are pretty cool there. At night it has a beautiful sky with clean air which is so nice but I have no chance to go there.

A country that I want to go to would be Iceland, because I have wanted to go to this country for a long time. At night it has a beautiful sky with clean air, which is so nice, but I have no chance to go there.

The country that I would like to go, would be Iceland, because I want to stay in that country for a long time and, -in my main there are pretty cool- (this idea not so clear, what you meant by main?), at night, there are beautifully sky with cleaning air, it is so nice, but I do not have chance to go there.