JR Shikoku is unlike a lot of train companies around the world. On this site there are a number of articles and links to the different kinds of train riding experiences available in Shikoku. The JR trains are incredibly convenient and punctual. Rumbling around Shikoku, while checking out the sites along the way, just seems like a perfect vacation to me. For those who are coming to Shikoku to experience the Shikoku Pilgrimage this really is “the cat’s meow”.
A great recent article by the Mainichi:
https://mainichi.jp/english/articles/20210917/p2a/00m/0et/026000c