Upvote:9
I lived on Ko Samui about 7 months from september 2013 to march 2014. I visited all the beaches of the island several times each one of them.
Most touristic
Golden mean
Least touristic
Lipa Noi I was on Lipa Noi beach several times and every time I saw there a few people.
Taling Ngam My friends lived near Taling Ngam beach and they told that this is the most quiet place on Ko Samui.
Bang Po I lived near Mae Nam from january 2013 to march 2014. Also quiet place, but mane seaweed in the water near beach.