Board Thread:Questions and Answers/@comment-30535075-20180216171039/@comment-30535075-20180325200655

Firstly, Ichigo had to go through seals. If Yhwach could had gotten to the palace anytime he like it he wouldn't had waited for Ichigo to break the seals. Every race found some kind of portal to get to the royal realm, even Aizen need to forge a key.

Unohana is as old as Yamamoto I don't see why she would lie to Kenpachi, she would be worry about the other prisioners there, not to mention that Kubo wouldn't had mention some info about the place if it was going to be a lie. And even if it was a lie he would had reveal it like he always did with other things that were lies, a.k.a. Gin's Bankai.

"Yhwach was able to get there by foot and Yamamoto stated that they were under the first court guard squad barracks."

There's no evidence of getting there on foot, even on the garganta and dangai they have to walk in those dimensions too. Been down below somewhere doesn't make the entrance any different from Yukio's dimension box and how Riruka can capture dimensions as well. Nothing new.