Getting to the ports of Yokohama, Tokyo (Harumi) and Kobe from nearby airports and downtown areas is easy and convenient. Airport shuttles, taxis and limos provide access to major train stations where you can easily find transportation to your port destinations.
To get from Tokyo Station to Yokohama’s Osanbashi, take the JR Keihin Tohoku Line or Tokaido Line to Yokohama for about half an hour. From Yokohama to Osanbashi is about 10-15 minutes taxi ride with no traffic.
For more transportation details, please visit: http://www.osanbashi.com/en/tourist/
To get from Narita Airport to Osanbashi, take the Narita Express to Yokohama for about 90 minutes or limousine bus to YCAT just in front of Yokohama Sta. for about 110 minutes.
For more transportation details, please visit: http://www.narita-airport.jp/en/access/index.html
To get from Tokyo Station to Harumi Wharf, you can take local buses or taxis. It takes about 25-30 minutes from Tokyo Sta. to Harumi Wharf by taxi.
For more transportation details, please visit: http://www.tptc.co.jp/en/tabid/853/Default.aspx
To get to Kobe Port from Osaka International Airport (Itami Airport) and Kansai International Airport, airport limousines are available from both airports to Sannomiya where tourists can pick up the “Port Liner” to the Port Terminal station. Kobe Airport is adjacent to the port, as well.
For more transportation details, please visit: http://www.kobe-meriken.or.jp/english/html/terminal/
A good number of ground transportation service companies offer the opportunity to book online in advance which saves a lot of time.
So pretty! Thank you for sharing and I'm not sure what part of Japan Martinez wants to see but from my experience all of Japan is beautiful.