We were just casually driving through a lava field, until we suddenly saw a big hole in the ground.
Of course we had to stop and check it out. Walking into the cave it was as if we entered a fairy tale, with sparkling silver everywhere.
Not real silver, but the illusion of it, caused by very tiny droplets of water on white coloured surfaces of chalk, or salt, or you name it. We have no idea, except that it looked stunning 🩶.