Ok, so normally we would refrain from posting direct advertisement, but since this is one of those things one should do, at least once, in ones lifetime, we felt the urge to post it here. This “cave”, once a quarry where they extracted 96% pure marble (and still do in some parts of the quarry.) is now home to a staggering 50 million litres of pure groundwater, filtered through millions of tons of rock! Inside this system, they have fitted a huge restaurant. With space for 300 guests in the “Ballroom”, and small arcades which fit 60 people, serving dinner and longdrinks mixed with the same pure groundwater, this is a lifetime experience. If you find the staggering light show and boat trip into the restaurant boring, the view from the arcades, while you eat Norwegian traditional food will definitely make you feel tranquil. This is a must go to place if you ever visit norway, a true lifebit:

More info and pictures can be found here