Everyone gives Hiroshima
four hours.
That is the mistake.

Start with the Peace Memorial Park — the museum, the National Peace Memorial Hall, the cenotaph and the Genbaku Dome — and allow half a day, not an hour. It is not in the list below because it is not something to rank; everything else in the city and on Miyajima is, and here it is in order.

1. 01

   Miyajima and the floating torii

   WORTH IT¥200 ferry + ¥100 tax · half a day minimum

   The single best day out from Hiroshima and the reason two days beats one.

2. 02

   An okonomiyaki counter — not the food court

   WORTH IT40 min · layered, with noodles

   Hiroshima okonomiyaki is layered rather than mixed and contains noodles; that is the whole difference from the Osaka style, and it is the city's one genuinely distinctive thing to eat.

3. 03

   Hiroshima Castle grounds — the keep is shut

   DEPENDSFree · 45 min · keep closed 22 Mar 2026

   Hiroshima Castle's keep closed to the public on 22 March 2026 — after 68 years — because the 1958 reinforced-concrete reconstruction no longer met earthquake standards.

4. 04

   Shukkeien Garden

   WORTH IT¥350 · combo ¥660 · 40 minutes

   The best ¥350 ($2.22) in the city — and free if you are 65+ with ID or in high school or under, since the price change of 14 April 2025.

5. 05

   Carp baseball at Mazda Zoom-Zoom Stadium

   WORTH ITEvening · ~3 hours · sells out

   Widely described as the best atmosphere in Japanese baseball, and it appears in essentially no English list of things to do in Hiroshima.

6. 06

   Mitaki-dera — the three-waterfall temple

   WORTH ITFree · 90 min including travel

   Ranked 9th on TripAdvisor's list for this city by the people who actually went, and absent from every English listicle.

7. 07

   Orizuru Tower

   DEPENDS¥2,200 + ¥100 crane fee · 45 min

   This is where the castle's lost view went, and with the keep shut it is now the city's main paid viewpoint.

8. 08

   Mount Misen and the Miyajima ropeway

   DEPENDS¥1,100 one way · ¥2,000 return · 2–3 hours

   Worth it if you have a clear day and half a day spare; not if you are squeezing the island into an afternoon.

9. 09

   Hondori and the covered arcades

   DEPENDSFree · 30 min dry, 2 hours wet

   Half a kilometre of roofed shopping street running from the Peace Park end to Hatchobori.

10. 10

    Mazda Museum

    DEPENDSFree · online booking only · closed 8–17 Aug 2026

    Free, genuinely interesting, and impossible to add to a trip you are planning this week.

Every time above is a verified 2026 figure, not a guess: the museum needs a reserved opening slot, the castle keep closed in March 2026, and Miyajima runs on the tide, not the clock.

Almost every verdict on this site falls out of these.

1. 01

   Hiroshima Castle — the keep is shut

   DEPENDSFree · 45 min · closed 22 Mar 2026

   Hiroshima Castle's keep closed to the public on 22 March 2026 — after 68 years — because the 1958 reinforced-concrete reconstruction no longer met earthquake standards. A wooden rebuild is planned but years out. The grounds, the moat, the bomb-scarred stone walls and the Ninomaru reconstruction are all still open, and all still free. The tower you came to go inside is not. Go for 45 minutes, spend nothing, and do not walk across town for a view that no longer exists. Every other page ranking for this castle was written before it shut.

2. 02

   Miyajima: high tide or low tide?

   DEPENDSAbove 250cm floats · below 100cm walks

   Miyajima runs on the tide, not the clock. Above 250cm the Great Torii appears to float and the shrine's corridors stand over water; below 100cm you can walk out across the sand to the gate's legs. Those are the Miyajima Tourist Association's own published thresholds, and they are measured against the Hiroshima Port datum — 200cm below mean sea level — so a generic tide app will give you numbers that look similar and are not comparable. Check the official table before you book the ferry, not after. If you can only have one, take the high tide — the floating gate is the photograph you came for, and standing under it is the novelty. But the flat middle band gives you neither, and that is the one nobody warns you about.

3. 03

   Miyajima — day trip or stay the night?

   WORTH ITRyokan from ~¥44,000 · last ferry 22:14

   The most consistently repeated upgrade advice for this region, and it is right. The island's distinctive asset — the torii lit after dark, deer in empty streets, the shops shut and the queues gone — is only available to people who sleep there. If you have three days in Hiroshima, spend one night on the island. If you have two, day-trip it and do not feel short-changed.