Mitaki-dera is one of Hiroshima's most atmospheric escapes, a temple tucked into a wooded valley with small waterfalls, mossy stone figures, and a path that keeps climbing away from the city. Its name, 'three waterfalls,' tells you what to listen for.
It is especially beautiful in autumn, but the shade and water make it worthwhile in other seasons too. Come when you want Hiroshima to feel contemplative rather than monumental.