Especially you should learn about that country before you go there and it will be better if you have a map or guidebook about Japan. The trip spend about 5-6 hours to get there you can book the hostel By www.hostelworld.com Fist if you at Sovannaphum airport you have to go to check in, then get on the plane, Affer that when you arrive. The airport at Japan, you can get on the train at Tokaido it travel from Tokyo to Osaka. Then go towards to Shin-Fuji station around 40-45 minute. And go around Fai-Fuji mountain that full of the beautiful landscape of the nature. Moreover , you can see the Fuji-Hakone-Izu national park too.