This post is a bit off topic, in the sense that Laganas is definitely not a winter destination. I found my self, in this small spot on Zakynthos island, in December and I was fascinated by the ghost town atmosphere of the place. I felt like if I was in the abandoned set of a western movie. Then, after thinking about it for a moment, I realized that it actually really was the abandoned setting of a show, put in place for tourists every year and lasting from June to October.
So, if you ever wondered how the ultra-tourist resort looks like out of season, this is a good example.