Andrew hadn't realized that in terms of navigation, the trains would be the easy part. Nothing looks the same from down here as it does from his regular height. He's afraid to go off into the underbrush, but he's sure that he needs to leave the path fairly soon to find his way to the TARDIS. If he could just sense her -- or even call out to her with his mind. Or with his phone, come to that, but he's already tried and it's not sending or receiving any signals (at least, not at the correct frequency to get picked up).

Pausing behind the leg of a bench to catch his breath, he takes a few moments to feel sorry for himself and to tug on his hair in consternation. Here's where he needs to leave the path -- or is it? He takes a few tentative steps away from the pavement, then stops again and looks along the path in each direction. A few more moments of hesitation, and then he starts moving again, committing himself to this course of action.