I've been to an onsen during a trip to Japan. The entire process, from the washing ritual to immersing oneself in the hot spring, is an experience that's hard to articulate

Whether it aligns with the marketing or is part of the "Japan fascination", I think, is really hard to say especially as an outsider myself

There's a tranquility to the surroundings, but it's often disrupted by throngs of tourists.

we weren't prepared for the intensity of the sun, even on an overcast day. got chafed and sunburned after a day out, a reminder that nature has its way. that being said, immersing in the onsen was surreal in its relaxation, a balm for the burns.

In any case it was an experience, certainly not a cheap one, and it was punctuated with moments of discomfort but also deep relaxation.