As a Half-Finn/ Half-American and living most of my life in the United States, the scope of my perspective may be quite limited. However, I have lived in Finland for the past four years so I can comment on aspects that I enjoy of Finnish Culture.
I think experiencing summer in Finland is a unique experience is one that is special to myself, as growing up I would visit Finland often in the summer. As I have gotten older and have been living in Finland this still is true, going to the Mökki every summer is something my family and friends even from abroad make a point of doing every year.
The serenity and peacefulness of being lakeside, hopping in and out of the sauna, and drinking until the sun goes down (haha) is something that every person who has come to Finland remembers and wants to experience again.
I think the tranquility of nature here can also be perceived in the personality of the often seen as ‘soft-spoken’ cliche of the typical Finn, one who is content with the life they live.