Translation of serenidad

Some of the disadvantages are the coldness, darkness and the fact that the days are a lot shorter then as in the summer. First let me tell you what I do not like about the winter. It is the following.
It's like a fairytale. Many green areas, play grounds and many children playing on the streets and a gold court at the end of my street. I've found a great partner from Greece to play with at the weekends.
She was a very cute twenty six year old woman from the area, had a perfect English and could be understood well. She told us to put on good shoes and we started walking towards the valley.