Day 1
Arrive, Peace Memorial Museum, A-Bomb Dome
Morning
Arrive by shinkansen or at Hiroshima Airport. Check in to your hotel near Hiroshima Station or Peace Park. Drop bags and walk to the Peace Memorial Park (15 minutes from the station on foot, or two tram stops on the #2 line). The park is open all day; the museum (¥200, one of the cheapest admissions in Japan) opens at 08:30.
Afternoon
Spend three hours in the Peace Memorial Museum. The East Building (context and history) leads into the Main Building (personal testimonies, preserved belongings). The final corridor with the shadow burned into stone steps and the watch stopped at 8:15 am are not photographs — they are the originals. Walk the park afterward. The A-Bomb Dome (Genbaku Dōmu) is a five-minute walk north across the Motoyasu River. It is the only structure at the hypocenter left standing deliberately as a ruin.
Evening
Dinner in the Nagarekawa entertainment district (10 minutes east of Peace Park). This is where Hiroshima people actually eat. Try Hiroshima-style okonomiyaki — it is layered, not mixed, with soba noodles inside, and it is genuinely different from Osaka-style. Okonomimura ('okonomiyaki village') is a building with 24 stalls on multiple floors: pick any stall with a cook who looks absorbed in their work.
TipBuy the Peace Memorial Museum audio guide (¥300). The recorded voices of survivors are irreplaceable context that the exhibit panels alone cannot provide.