Blue lagoon geothermal spa in Iceland is one of the 25 wonders of the world. One has to book in advance as they let in limited number of people at a time. They have exclusive lounges, spa and beauty treatments, in water massages. There is ample amount of white silica mud mask available. You can apply it as much as you want on your face and body and leave it for about 5 minutes. There is a significant difference when you wash it off. You can also purchase algae mask and apply. There are relaxation areas and even a man made waterfall to massage stiff muscles. Your trip to Iceland cannot be complete without blue lagoon spa.