My Favorite Season

My favorite season absolutely is undeniably summer. Because in summer This is when we can do a lot of many interesting activities such as hiking, camping, kayaking etc. For us girls, the most important thing is that in summer I am [redundant, we know already what summer is to you] we are able to wear all kinds of beautiful skirts, shorts and dresses which can not be dressed up in which we cannot do during the cold seasons. Another thing, one, I can eat have ice creams or cold drinks as much as I want in hot summer. My favorite flavor of ice cream flavour is dark chocolate or those with a fruity taste like blueberry.

Favorite Season

My absolute favorite season is the Summer, because in summer we can do a lot of interesting activities such as hiking, camping, kayaking etc. For girls, the most important thing is that in the summer I am able to wear all kinds of beautiful skirts, shorts and dresses which can not be worn in the cold seasons. Another thing, I can eat ice creams or cold drinks as much as I want in the hot summer. My favorite flavor of ice cream is dark chocolate or fruity tastes like blueberry.

I can understand fully what you are saying, it just sounds slightly unnatural sometimes. Very good work though! 太好了！

Favorite Season

My favorite season absolutely is summer. Because in summer we can do a lot of interesting activities such as hiking, camping, kayaking, etc. For girls, the most important thing is that in summer we are able to wear all kinds of beautiful skirts, shorts, and dresses that cannot be used in cold seasons. Another positive thing about summer is that I can have ice creams or cold drinks as much as I want in hot summer. My favorite flavor of ice cream is dark chocolate or something with a fruit taste, like blueberry.

Clear paragraph.  Make sure to review subject/verb agreement.  If you are going to use girls (plural), then you need to use we (plural), not I (singular).  Try to make the paragraph flow more smoothly.  This is one reason why I put, "Another positive thing about summer is that..." This phrase helps the paragraph transition in a clearer and simpler way.