Hi, 

I'm travelling to Japan in 2 days with my boyfriend, and we will be there for a week. We're going to Tokyo/Kyoto/Osaka. It's our anniversary as well. We're looking for a nice onsen in one of these 3 cities. Would you recommend any special place? Thank you.

~Shadi

Hi Shadi!

If you are going to Osaka. DEFINITELY VISIT SPA WORLD!!

But here's a handy recommendation guide for each city:

Top 10 Best hot springs in Osaka and near Kyoto  .
https://planetyze.com/en/japan/osaka/blog/top-10-best-hot-springs-in-osaka 

Top 10 Best Hotsprings (Onsen) Around Tokyo
https://triplelights.com/blog/top-10-best-hotsprings-on-1811
 

I Hope this helps!

Hi,

If you are interested in  a quiet Onsen place,

I recommend staying at Shima Onsen, Gunma prefecture.

There is a non stop bus that runs from Tokyo to Shima,

so it's easy to access. (It takes three hours and a half though...)

Kashiwaya Ryokan (Japanese style inn) is good.

It has three private baths (and these are free of charge!)

Staff are friendly, tatoo friendly (even in a public bath), cuisine is great.

Highly recommended :)