Roavina

Country guide

Japan

A photograph of Japan
Photograph · Midori · CC BY 3.0

Around three quarters of Japan is mountain and forest, which pushes almost everyone onto the eastern coastal plains and makes the country far narrower in practice than 377,975 km2 suggests. Forty-seven prefectures, eight traditional regions and more than 14,000 smaller islands, and yet a first visit usually runs along a single rail corridor with Tokyo at one end and Kyoto and Osaka at the other. Tokyo is the capital and largest city of a country of almost 123 million people. Hokkaido in the north and Okinawa in the south are different climates rather than day trips, and both need their own week.

Reviewed by Elena Voss · Roavina Travel Editor

Cities

Every city catalogued in this country so far, ranked by how much there is to see.

Practical information

Language spoken
Japanese
National practical orientation; regional and minority languages may also be used
Dialling code
+81
International calling code; local area and mobile prefixes still apply
Currency
Japanese yen (JPY)
Use the official local currency; card acceptance varies by place
Emergency number
110 police · 119 fire and ambulance
Use only for an emergency; tourist assistance may use a separate number
Plug type
Type A · 100 V
Check that chargers support the recorded voltage before using an adapter
Tap water
Safe from the mains
JNTO states that tap water is safe to drink

Planning a visit

  1. January: seasonal closure recorded
  2. February: seasonal closure recorded
  3. March: seasonal closure recorded
  4. April: seasonal closure recorded
  5. May: seasonal closure recorded
  6. June: seasonal closure recorded
  7. July: seasonal closure recorded
  8. August: seasonal closure recorded
  9. September: seasonal closure recorded — this month
  10. October: seasonal closure recorded
  11. November: seasonal closure recorded
  12. December: seasonal closure recorded

Top things to see

Ranked by importance — sitelinks, pageviews and heritage status, not editor preference.

  1. Ueno Zoo Ueno Zoo
    02 1 hr 30 min

    Ueno Zoo

    恩賜上野動物園

    Ueno Zoological Gardens, known locally as 恩賜上野動物園, is a zoological garden in Tokyo. It occupies a position within Ueno Park, a major cultural and recreational district in the city.

    • High
    • Family attraction
    • Tokyo
  2. Tokyo Sea Life Park Tokyo Sea Life Park
    03 1 hr 30 min

    Tokyo Sea Life Park

    葛西臨海水族園

    Tokyo Sea Life Park, known locally as Kasai Rinkai Suizokuen, is a public aquarium located in the Kasai Rinkai Park area of Edogawa Ward. The facility focuses on aquatic environments from around the globe, with particular attention to marine ecosystems.

    • High
    • Family attraction
    • Tokyo
  3. Kyoto Aquarium Kyoto Aquarium
    04 1 hr 30 min

    Kyoto Aquarium

    京都水族館

    Kyoto Aquarium is a public aquarium in Kyoto, offering a modern marine-life experience alongside the city’s temples, shrines, gardens, and historic neighborhoods.

    • High
    • Family attraction
    • Kyoto
  4. Tennōji Zoo Tennōji Zoo
    05 1 hr 30 min

    Tennōji Zoo

    天王寺動物園

    Tennoji Zoo is a zoological garden located in Osaka, Japan. Established in 1915, it is one of the oldest zoos in the country. The zoo occupies a position within Tennoji Park in the southern part of Osaka city.

    • High
    • Family attraction
    • Osaka
  5. Sumida Aquarium Sumida Aquarium
    06 1 hr 30 min

    Sumida Aquarium

    すみだ水族館

    Sumida Aquarium is a contemporary urban aquarium inside Tokyo Skytree Town in Sumida Ward. It forms part of the Oshiage destination alongside Tokyo Skytree and the Solamachi shopping complex.

    • High
    • Family attraction
    • Tokyo
  6. Sunshine Aquarium Sunshine Aquarium
    07 1 hr 30 min

    Sunshine Aquarium

    サンシャイン国際水族館

    Sunshine Aquarium is an urban aquarium located within the Sunshine City complex in the Ikebukuro district of Tokyo. The facility is operated as a commercial attraction within a major shopping and entertainment destination.

    • Notable
    • Family attraction
    • Tokyo
  7. Aqua Park Shinagawa Aqua Park Shinagawa
    08 1 hr 30 min

    Aqua Park Shinagawa

    マクセル アクアパーク品川

    Maxell Aqua Park Shinagawa is an aquarium located in the Shinagawa district of Tokyo, Japan. The facility is known for its combination of marine exhibits with lighting and sound technology, creating immersive displays.

    • Notable
    • Family attraction
    • Tokyo

Source: OpenStreetMap contributors, Wikidata ·

Common questions

How long should a first trip to Japan be?

Ten to fourteen days supports four or five days in Tokyo, three or four in Kyoto, and two or three in Osaka. Add Nara or Himeji only after those bases have enough time, and avoid turning every rail stop into a hotel change.

What entry documents are needed for Japan?

Japan's visa exemption or visa requirement depends on passport and travel purpose. Confirm the current rule through Japan's Ministry of Foreign Affairs or the embassy responsible for the traveller's residence.

What is the best way to travel around Japan?

The Tokaido Shinkansen links Tokyo, Kyoto, and Osaka, while local rail and buses cover city travel. An IC card simplifies many local journeys but does not replace every reserved long-distance ticket, and luggage forwarding can reduce friction between bases.

When is a practical time to visit Japan?

March to May and October to November are broad options for the main-island route, with blossom and autumn periods creating concentrated demand. Confirm regional weather and reservations for the exact cities rather than assuming one national season behaves uniformly.

What money and payment basics apply in Japan?

Japan uses the yen (JPY). Electronic payment is common but not universal, so carry some yen for smaller businesses, ticket machines, or rural transport without assuming that one stored-value card works for every purchase.

What practical safety details should I save for Japan?

Japan's emergency numbers are 110 for police and 119 for fire or ambulance. Type A sockets operate at 100 V, which is lower than in the other wave-A countries, and mains tap water is recorded as safe.