Cars are taken over on the lower deck of the ferry, so it is possible. Unsure of price

フェリーで行けますが、道幅が すごく狭いので、すれ違うのが難しいです。厳島神社の周りは、宮島の桟橋の駐車場に停めて、徒歩で観光することになります。山には、登山口までバスが出てますから、自家用車で行かれるよりも、フェリー乗り場に駐車されて、島に行かれた方が、便利です。忙しい日常と、全く違う、時間が流れている宮島をゆったり、楽しまれたらいかがでしょう。母が足が悪いので、タクシーを利用しました。島には2,3台しかないそうですが、待たされることもなく、問題ありませんでした。

Hiya, yes we bought a JR pass also. You can use it from the Airport and travel all the way to Osaka on it. You would also use it from Toyko to Odawarra, then you will need to buy a Hakone travel pass to get you up to Hakone. This covers the train, buses, ropeways and sightseeing boat on Lake Ashi We thought that we would use the train from Odawarra up into Hakone will a bit of a walk to our hotel - remember it is very hilly. But the bus service is also very good and at the information desk at Odawarra, they suggested the bus as it stopped right outside our hotel - which was fantastic as it was pouring rain. I suggested going to Gora Station and catching the ropeways and cablecars - stopping at the top to see the geothermal area. and then down the other side and catching the boat and go on the loop and back up and over on the cablecars and ropeways. We loved doing that, but if you dont, there is a bus stop on the other side of the lake at either stops there if you want to explore and return by bus. Hope this helps!

If you will be in Japan for about 1 week and traveling between cities such as the ones you listed, it is worthwhile to purchase the 7 day Japan Railpass . In addition, buy the PASSMO smart card. This card allows you to travel on the local buses, metro/subway, nonJR trains. You need to use cash (yen) to purchase your pre-paid PASSMO card. It can be purchased at any local train/metro station and re-loaded at any PASSMO machine. You can select "english" language at the PASSMO machine and follow the instructions. We purchased $50 worth and reloaded the card several times. The nice thing about the smart card is you can keep it for future trips. No expiration date. We did many day trips using the JR Railpass from the major cities. For example from Kyoto or Osaka, you can take a day trip using your JR Pass to Nara, Hiroshima, Miyajima island. Shin-Osaka is the train station in Osaka for bullet trains. You can cover Nara in 1 day and Miyajima/Hiroshima another day. The JR pass covers the JR Ferry ride to Miyajima. Between Osaka, Kyoto to/from Tokyo, you can take one of many shinkansen bullet trains. There are several different types of bullet trains. On JR, you cannot take the Mizuho or Nozomi (fastest line) however, you can take one of the other bullet trains Sakura, Hikari or Kodama.If you are planning to visit Hakone for 2 nights from Tokyo, take the JR bullet train to Odawara, then buy the 3-day Hakone Free Pass at Odawara.The free pass allows you to travel to and from Hakone using Odakyu Railway's unlimited use of Odakyu affiliated buses, trains, boats, cablecars and ropeways within the Hakone free area. You should spend the time now to do your research on train routes. Download Hyperdia, the Japan train schedule link. Under Hyperdia's search parameters/route, uncheck all types of routes except for Bullet Train (Shinkansen) and Japan Railway. This will direct you to those trains that are available using your JR Railpass.You should also read up on Trip Advisors blog for the specific city you plan to visit. There are helpful suggestions written by travelers about what to see and how to get there. Too much to see in 7 days.