2015 became the year with the most tourist visiting Japan. RAKUTEN has just announced, “Compared to the year 2014, Japan had the most tourist increase.” Within Japan, ATAMI has been chosen for the number one visitors. ATAMI is in between TOKYO and OSAKA along the coast and about 1 hours away from TOKYO. While enjoying the nature of the mountains of ATAMI, the hot springs and fresh seafood is delightful. There are numerous firework events, shrines, and traditional Japanese shops to enjoy their cultural ways.
Running in second and third is FUKUOKA. FUKUOKA is located west of Japan and is very close to Korea. It is popular especially to Asians. Fourth is NAGANO. It is located in the middle of Japan. Surrounded by mountains, skiing and snowboarding is one of the famous attractions for the tourist of NAGANO.

http://travel.rakuten.co.jp/ranking/special/trend/inbound/