If you use car rental in Okinawa, rendition where the rental car companies near Naha Airport are posting is convenient.
The entrance of Okinawa "Naha Airport" is full of people using Okinawa travel and business, there are also public transport facilities such as monorail and route bus, but most people will be using car rental.
Each car rental company carries a shuttle bus service from Naha Airport to the store.
If you use rental cars in Hokkaido, renewables which New Chitose Airport and many rental car companies in Sapporo publish are convenient. There are many shops near Shin Chitose Airport, bases of business and shops very close to Sapporo city center. It is also recommended to go to Otaru Canal, Odori Park, Yogaoka Observation Deck, Asahiyama Zoo, Farm Tomita for sightseeing in Hokkaido.
As well as extra charges for renenabi, you can enjoy driving easily without charge as there are plenty of car rental cars with free pick up and discarded OK.
If you use rental cars in Fukuoka, renki that is posting many rental car companies around Fukuoka Airport, Kitakyushu Airport, Hakata Station is convenient. There are many shops close to Fukuoka airport and shops nearby, business base, Shinkansen Hakata station.
As well as extra charges exclusively for renenabi, you can enjoy driving easily without charge, as there are plenty of car rental companies with free pick-up and drop-off.
Rental car portal site that is able to compare the lowest prices from car companies in all parts of Japan and make a reservation.
Regarding questions for each rental car company, please directly contact them.