oh yes, there are not all that many hotels on the island, and many of them are more expensive.
In every case , in that day, in Miyajima, it's all full.
I think to stay in these two ryokan or in Miyajima Gouchi Coral Hotel (near ferry).
Oh yes, first visit (in the morning) for me it 's Memorial Museum,Peace Memorial Park, Hiroshima Castel . In late afternoon, I woul like to go to Miyajima to see the fireworks!