The Blue Lagoon lifestyle is a masterclass in modern branding, transforming a geothermal byproduct into a pinnacle of luxury and entertainment. It offers a vision of life where the raw, untamed beauty of the Arctic meets the refined comforts of the 21st century, proving that the ultimate form of entertainment is the rejuvenation of the self in an extraordinary setting. of the Retreat or focus more on the gastronomy

I think you might be referring to the movie "The Blue Lagoon"!

The Blue Lagoon is not a secret, nor is it cheap. As Iceland’s most visited attraction, it requires advance booking—sometimes weeks in advance for peak times. Prices range from the standard “Comfort” ticket (which includes a towel and one face mask) to the lavish “Retreat Spa” experience (a private, minimalist sanctuary for the truly dedicated).

One of the most striking "stories" for visitors is the contrast of relaxing in hot water while surrounded by ice-covered rocks or falling snow in the winter. Essential Tips for Your Visit