Keen about hiking some mountains in Japan? Try Mount Misen which is located in Miyajima of Hiroshima prefecture. Mount Misen is one of the best spot to do some day hiking. One can reach the top in around 2 to 3 hours. From the top you can see the Seto Inland Sea from above. It also has some stunning and weirdly looking rock formation that makes it even more marvelous to look at.