Lake sits in Zao Mountain Range, deemed relatively easy to climb

The Okama caldera lake sits on 1,841-meter Mt. Kumanodake, the highest part of the Zao Mountain Range in Miyagi Prefecture, northeastern Japan, as seen in this undated file photo. The range is rated relatively easy to climb by an exercise physiologist among Japan's 100 famous mountains selected by a Japanese writer and mountaineer. (Kyodo) ==Kyodo