I am planning to do the pilgrimage on Shikoku and wrote an email to JNTO, asking if it is ok to set up a tent outside a camping site. They wrote that it is forbidden to camp outside a camping site but I have read that on Shikoku it is allowed (compared to the rest of Japan?).
In fact, I have read it on several websites and I'm thinking that maybe the people at the local branch of the JNTO (I'm from Austria) aren't sure themselves and just say that it is forbidden.
I hope you can help me.
(And excuse my bad English)