Why is the water in the blue lagoon so blue? | #AskGudmundur

https://www.youtube.com/watch?v=_DowgBsHlUg

"Why is the water in the blue lagoon so blue?" Kaila asked. Well, I went to find out for you Kaila and while I was there I got a great, floating face massage and a long swim. This is quite a good job.

Gudmundur of Reykjanes.