36.
The first rule is don't get separated. Naturally they break it within what might be three days. In their defense no one was prepared for a bike with a mind of its own along with the data streams, but it's still a problem.
Takato however, feels in his element. This isn't the forest, not his Digital World, but it's still a Digital World and he'd survived one. He can survive another one.
So he takes command, with Kato-san's information. Ruki and the others will be fine, she has a tough spirit and one of the best decks he's ever seen. So they keep walking, searching for paths to Culumon. It's hard work and they'll run out of supplies if they take too long, but it's all they've got.
At least until the Demon Man shows up. That is a problem.