You are free to use the car inside Osaka Kyoto Nara and Kobe
Here are some of our suggested itinerary:
Hotel in Osaka -> Osaka Castle -> Osaka Bay Area -> Shinsekai -> Hotel in Osaka
Osaka Castle is the most famous castle in Osaka and has become Osaka landmark nowadays. Osaka castle is said to be the largest castle at the time Toyotomi Hideyoshi ruled.
Osaka Bay Area
Tempozan harbor village is located in Osaka Bay Area which is a collection of man-made waterfront islands and peninsulas, built to accomodate Osaka's growth. There are lots of museums, theme parks, observatories and shoppping centers. The famous attractions in Tempozan is Osaka Aquarium (Kaiyukan), Tempozan Ferris Wheel and Santa Maria Cruise.
Shinsekai (新世界) means "The New World" in English. The area of Shinsekai is famous for 3 things, Tsutenkaku Tower, Kushikatsu (Osaka's best known dish) and Tennoji Zoo.
Hotel in Osaka -> Kiyomizu Temple -> Fushimi Inari Taisha -> Arashiyama (Bamboo Forest) -> Hotel in Osaka
Kiyomizu Temple is the biggest and the most famous temple in Japan and has been registered as the world heritage in UNESCO. You can see a famous shopping street upon the way here which is called Higashiyama Disctrict. You can find lots of Japanese Souvenirs such as japanese dolls, umbrella, kyoto snacks or cookies. Besides that you can also rent yukata to walk around Kyoto and take great pictures.
Fushimi Inari Taisha
Fushimi Inari Taisha is a Shinto shrine which is famous for lots of tori gate. For you who like to hike, you can hike the slope here passing through every torii gate. You can see Kyoto view for above Fushimi Inari Temple
Arashiyama (Bamboo Forest)
Arashiyama is a rural area in Kyoto with a very beautiful nature. Arashiyama is famous for its bamboo forest. Here you can also find lots of people selling japanese souvenirs such as tea, and so on