Taro remembered a test he did back when he still lived with the fast biters. He had done a test and had to climb a hill very similar to the one he was looking at now. However, it had been a long time since he had done it and wasn't even fully grown at the time, and he wasn't sure if he could do it now. Let alone that Jenna and his parents would never make it up there.
"It's been a while since I've done it, but it might be possible to climb it..." Taro stppped and walked forward, looking around. "Ah, here!" He had found a hidden path, which would be hard but certainly possible to walk up.