Kashiwaya Ryokan is a traditional Japanese inn nestled among trees and mountains of Shima Onsen. This area of Gunma is a truly relaxing escape from the hustle and bustle of the big cities. I am so happy that this ryokan welcomes guests with tattoo-friendly private onsens, vegan meal options, and easy access from Tokyo. (There is one bus a day leaving Tokyo station and arriving directly in Shima Onsen 3.5hrs later).