Amy Chavez, is in so many ways, one of my favourite writers on Japan. Direct, thoughtful, leaving ego aside, she is articulate and intelligent. This is a good article on the region and on tourism in Shikoku. Give it a read!

https://www.japantimes.co.jp/community/2019/11/25/our-lives/seto-inland-sea-2010s-change/#.XeMqs1pR01j