しばらくツーリング集団について走るのだが，周囲の風景がどんどんと大きくなっていく。止まる場所がなかなか無い。しかしかなりの山中だ。＠21号線，阿里山へ For a while I followed the moto group, but the surrounding landscape got bigger and bigger...There was not much place to stop, but it's quite in the big mountains, I felt. @Route21, to Alishan