Gorgeous pictures. And I like your artistic choice of BW.
I am interested in visiting Shikoku myself - it's a remarkable part of the world. There are at least a couple of things I am keen on experiencing.
The first is to stay at a traditional kominka (a traditional folk house) like Chiiori in the Iya Valley of Shikoku. (see link).
Kominkas are traditional Japanese farmhouses. In the Setouchi region, many kominkas have become hotels and restaurants that offer visitors a rural experience opposite from the big city life.
www.setouchi.travel
The second is to experience one of the traditional old pilgrimage trails like the Kumano Kodo for a week or so. Like the Camino de Santiago in Europe the Kumano Kodo is a World Heritage listed walk.
Hike the Kumano Kodo trail, a 1200-year-old pilgrimage on the Kii Peninsula, Japan's spiritual heartland. Book a Kumano Kodo walking tour with Auswalk today!
auswalk.com.au
Maybe with a diversion to the "big Island" to experience the Nakasendo trail (a traditional feudal "highway" - in reality a walking trail which originally ran from Tokyo to Kyoto through the central hills and mountains) for another week or so of walking and exploring.
www.japan-guide.com
And of course I would be packing heat...................well, a camera!
🙂 Just before COVID hit the world I was seriously looking into this but that threw everything into a 'cocked hat". Since then life has become busy with other stuff. But it's still a possibility. (Fingers crossed.)