Hiroshima is a beautiful and modern (reconstructed after the bombing) Japanese city. It has fascinating outdoor malls, an eloquent and beautiful castle, and a thought-provoking tribute to peace. The people are wonderful and helpful, even if you are like me, a dumb American trying not to insult them at every turn.
Quick Tips:
Take a Japanese-English dictionary with you, and in the worst case, allow the people you are trying to communicate with just to read out of the book what you are trying to tell them. Everyone is very nice, and they all want to help you get to where you are going, so don't be afraid to ask.
The Japanese culture is a beautiful and spiritual one. If you have the opportunity to make it to this or another city in Japan, try to experience the culture as they do. Eat the food for breakfast, lunch, and dinner. Go to the temples and visit the gardens. If you get a chance, try to get out to the countryside. In the countryside, people still live like they did a 1,000 years ago in their paper walled houses and tending to their rice paddies. It is a very peaceful life that you should at least get a glimpse of.
Best Way To Get Around:
Walking is the best way to get around especially if you are staying right downtown. Everything of importance is walking distance from downtown. Other than that, taxis are the best way to get around the city. There are hundreds of them around. When you get in one, make sure they are registered (there will be a license on the dash). Most drivers understand enough English to get you to all the major locations in the city.
To get in between the cities, Japan has an excellent train system with the Shinkansen (bullet train) at the top of the list. Traveling at 200kph this train can get you anywhere in the country very quickly. There are two important things you need to know before traveling this way. (1) Smoking on the train is allowed and if you don't smoke you don't want to be anywhere near this car. (2) The train is ALWAYS on time. To the minute. If you are in Japan and the train you are waiting for is either late or early, then your watch is wrong.