3 Days 2 nights
Travel from Kyoto or Osaka to Hiroshima by shinkansen and do my Must-See Hiroshima 1-Day Trip Itinerary above. Spend the night at a hotel in Hiroshima.
Wake up and travel to Miyajima and do my Must-See 1-Day Miyajima Itinerary above. Since you’ll spend the night on Miyajima, you can really slow down on the island. Consider leaving Mt. Misen for Day 3.
Wake up and take the Miyajima Ropeway up Mt Misen. Explore the top then hike back down to the village. Return by ferry to the mainland and then take a shinkansen back to Kyoto or Osaka (or points west).