(能ある鷹は爪を隠す) Nou aru taka wa tsume o kakusu "A true hawk hides its talons"
If you're seeking another option to view the cherry blossoms or fall foliage in the Hiroshima area, there is a nice Buddhist temple easily accessible from the city. Mitaki is a very rich area, complete with Pagoda, waterfalls, Buddha statues, and a nice mountain climb if you're in the mood. I've been told it's a common field trip for Hiroshima city schools.
The path is well marked as you get closer to the temple
Access From Hiroshima or Yokogawa Station, take the Kabe Line to Mitaki Station. There should be a map at the entrance to the loading platform. You'll find the path a few minutes walk to the left.