A day in Hiroshima with cruise ship

We will arrive in Hiroshima on a cruise. Will we have time to see everything in town and Miyashima gate? Is there public transportation from port to town? Thank you.

Most cruise ships seem to use the pier at Hiroshima Port (as opposed to the one in Itsukaichi). About 1.5 kilometers away is the pier of direct boats to Miyajima:
https://setonaikaikisen.co.jp/language/en/highspeedship/

Thank you for the info.
How about getting from the port to town?

If by �gcruise ship�h you mean this:

https://en.wikipedia.org/wiki/Cruise_ship

then there are two ports in Hiroshima where cruise ships dock.

Ujina Foreign Trade No. 5 Berth or Itsukaichi -11m, -12m Quays.

https://www-pref-hiroshima-lg-jp.translate.goog/soshiki/221/cruise-joh...

There were reviews (in Japanese, by Japanese persons) about what happened after arriving at these ports on a cruise ship. I'll post the English version translated via Google Translate.

Translated with DeepL.com (free version)
https://cruisemans-com.translate.goog/ports/1026/reviews?listSortBy=sa...

There are various scenarios. The first person took a shuttle bus (provided by the cruise ship) from Ujina Foreign Trade No. 5 Berth to the cruise terminal, then a taxi (probably waiting at the terminal) to Hiroshima Station. From there, they took the JR line to Miyajimaguchi Station and boarded the ferry to Miyajima. For the return trip, they took the World Heritage Route ferry to Peace Park, then probably a taxi or the Hiroshima Electric Railway back near the ship (and walked the rest of the way).

https://www.aqua-net-h.co.jp/en/heritage/route.html

The next person took the cruise ship shuttle bus to Hiroshima Port, then a high-speed ferry to Miyajima.

https://setonaikaikisen.co.jp/language/en/highspeedship/

The fifth person took the shuttle bus to Hiroshima Station, then the Hiroshima Electric Railway to Miyajima (note the tram is slow).

I think the first step is to ask the cruise ship operator where their shuttle buses go. Depending on that, various options become possible. The simplest would probably be to take a taxi from where the shuttle drops you off.