Genesis is fun to read. But it is more difficult to understand. That takes an understanding of literature and the culture and time frame of the different sections of the book.  

The story of Eden anticipates the bid event in the history of mankind, reconciliation with God our creator. This proto-gospel is the mos amazing feature of this already amazing story. 

Even though the primeval stories of Genesis are extremely old, they are still extremely accurate as to where and when these events took place. 

This is Moses' preface to the history he would write in the Pentateuch, but it is also the preface to the big story of the Bible.

In a very real place in upper Mesopotamia, God placed the first man and woman. It was a garden, but a garden that would not last. The crash of the climate in the Bolling-Allerod brought the garden back to the harsh conditions described in the beginning of chapter 2. This story explains why

In the experience of Adam and Eve in the Garden there is an extraordinary surprise: God provided a preview of the good news that would be reaved to us in Jesus, the son of the woman who would crush the head of the serpent. 

Yes. There was a flood. Yes, God preserved Noah and his family for the destiny he had planned for them. They would be the distant ancestors of Abraham, David, and Jesus. 

The story of the flood ends with a promise: God will never flood the land again. And history affirms that to be so.