Board Thread:Episode Discussions/@comment-25787298-20160519120227/@comment-25549954-20160522130702

I think the three legendary places are in different dimensions just like Kamui dimension and not in this world. In ch408 Fukasaku must have meant that it would take a month to reach on foot to access Mount Muoboku if we know a secret route (portal), otherwise it would be impossible to find. Because the summons are in different place they are not affected by Infinite Tsukuyomi imo.