Proposed Day 1 - Tokyo
Stop 1: Shinjuku (新宿)
The frequently departing, orange trains on the JR Chuo Line (Rapid Service) take less than 15 minutes and cost 190 yen from Tokyo Station to Shinjuku Station.
Stop 2: Shibuya (渋谷)
Shibuya Station is one of Tokyo's busiest stations. It is served by the JR Yamanote Line, JR Saikyo Line, JR Shonan Shinjuku Line, Hanzomon Subway Line, Ginza Subway Line, Fukutoshin Subway Line, Tokyu Toyoko Line, Tokyu Den-Entoshi Line, Keio Inokashira Line and the Narita Express.
Stop 3: Tokyo Tower (東京タワー)
The closest subway stations to Tokyo Tower are Onarimon Station on the Mita Subway Line and Akabanebashi Station on the Oedo Subway Line. You can also walk there from Hamamatsucho Station on the JR Yamanote and JR Keihin-Tohoku Line in about 15 minutes.
Proposed Day 2 - Tokyo
Stop 1: Tsukiji Market (築地市場, Tsukiji Shijō)
Tsukiji Market is just above Tsukiji Shijo Station on the Oedo Subway Line. Alternatively, it can be reached in a five minute walk from Tsukiji Station on the Hibiya Subway Line. The closest JR station is Shimbashi, from where you can walk to the market in about 15 minutes.
From Tokyo Station
Take the Marunouchi Subway Line from Tokyo to Ginza (3 minutes) and transfer to the Hibiya Subway Line to get to Tsukiji Station (3 minutes). The fare is 160 yen.
From Shinjuku Station
Take the Oedo Subway Line directly from Shinjuku Station to Tsukiji Shijo Station. The one way trip takes 20 minutes and costs 260 yen.
Stop 2: Ginza (銀座)
Proposed Day 3 - Tokyo
Full Day: Tokyo Disneyland
Proposed Day 4 - Tokyo
Full Day: Ikaho Onsen
One of the four most famous hot spring resorts of Gunma Prefecture, featuring thermal waters with a high concentration of iron. Located at the eastern slopes of Mount Haruna, an active volcano, Ikaho is best known for its stone stairs, which lead up through the town center and are lined by ryokan, old fashioned game arcades and shops.
Proposed Day 5 - Tokyo
Stop 1: Akihabara (秋葉原)
Stop 2: Koishikawa Korakuen (小石川後楽園, Koishikawa Kōrakuen)
Stop 3: Imperial Palace (皇居, Kōkyo)
Stop 4: Yasukuni Shrine (靖国神社, Yasukuni Jinja)
Stop 5: Tokyo Dome City