I was not expecting Tsukasa to trip on something in the wild, to be honest. I figured she was more graceful and observant than that when it came to cross-country travel. But maybe she hasn't perfected those skills yet, only 300 years after becoming immortal. Or it was just an off-moment.
... and she blames the land for the incident. Welp... Though, you know, they probably said the same thing about Washington, D.C., too. It was built on a swamp, as well. Though that's a far more recent project than making Edo and Musashi livable, I suppose.
If she was actually just telling him as the memories came to her, maybe it'd go faster. Though, in a way, I guess she is, but she's leaving out the people, so far.