Things to Do in Japan

Fuji/Hakone/Izu National Park in Honshu
This is Japan's most famous park. The entire area is covered with seaside spas, hot springs, coastlines, golf resorts and places of historic interest. Fuji-san, a dormant volcano, is the national mountain of Japan.
 

Tokyo Disneyland
The Disneyland in Tokyo is one of the top theme parks in Asia and one of the most popular tourist destinations in Japan. There are 7 themed areas, each unique in its own style. In 2007, Tokyo Disneyland hosted approximately 13.9 million guests, ranking it as the fourth most visited Disneyland Park in the world.
 

Markets
The one market worth seeing is the Tsukiji fish market. Crowded as early as 5.30 am, it is amazing to see the Japanese pursuing their biggest passion- Seafood. If you are on a tight budget then, visit the flea markets in Japan. Haggling is the norm and bargain antique treasures and souvenirs are waiting to be found. Most of the flea markets are held irregularly, so make sure to check schedules before you go. Also, flea markets aren't usually open when it rains. So, do check if flea markets are operational before heading out.
 

Ride a bullet train
Do remember to take a ride on Japan’s high-speed bullet trains called Shinkansen. These comfortable trains can take you pretty much anywhere you want in Japan at speeds close to 186 mph (300 km/h). There are 7-day, 14-day, and 21-day rail passes for unlimited travel on all Japan railway lines throughout Japan. Definitely worth your money if you intend to travel frequently within Japan.
 

Take a communal bath
Ever heard of a communal bath being a tourist attraction? In Japan, you can safely put fears of public nudity aside and dip into a steaming-hot pool at a communal bath. These are known as sento or onsen. Onsen makes use of water from hot springs. Japanese traditionally bathe in the evening, but communal baths are open for several hours in the morning as well.