[StangGuy]

The boatride from the A-bomb domb to Miyajima is called the "World Heritage Cruise". I haven't taken it myself so I don't have any advice, but the place to catch the cruise is just south of the A-bomb dome and next to a cafe on the east side of the river. There is also a boat from Hiroshima port that goes to Miyajima island, again I didn't use it.