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Logistics · Country Guide

Japan

Coral to drift ice: Japan's full-spectrum water adventure

Updated Dec 7, 2025 • 20 sources

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Logistics

Use this travel brief to set arrival flow, local transit, and gear movement before you lock your itinerary.

Quick Facts

  • Primary airport: Tokyo Haneda Airport (HND)
  • Typical transfer: 15 km rail or taxi
  • Entry requirement: Entry rules depend on your nationality and passport.
  • Getting around: Japan is built for transit.

Getting There

Most international arrivals route through Tokyo (Haneda or Narita) or Osaka (Kansai). From there, Japan's domestic flight network makes it straightforward to reach the main dive hubs:

  • Fly south for Okinawa, Ishigaki, and other Ryukyu islands.
  • Fly north for Hokkaido and the Shiretoko area.
  • Use ferries for island chains that do not have major airports (notably Ogasawara) and for short inter-island hops in Okinawa.

If you are planning a split-region trip, consider arriving in one gateway (Tokyo) and departing from another (Osaka or Naha) to reduce backtracking.

Airports

1

Tokyo Haneda Airport

HND • RJTT

15 km • 15 km rail or taxi

Best all-around Tokyo gateway for domestic connections to Izu, Okinawa, and Hokkaido, plus many international routes.

Transport: Urban rail, Airport limousine buses, Taxis, Car rentals

2

Narita International Airport

NRT • RJAA

60 km • 60 km train or bus

Major international gateway with extensive long-haul routes; connect onward to Tokyo or domestic flights.

Transport: Express trains, Airport buses, Taxis, Car rentals

3

Kansai International Airport

KIX • RJBB

50 km • 50 km rail or bus

Convenient Osaka/Kyoto gateway and a good choice for open-jaw itineraries across western Japan.

Transport: Rail links to Osaka, Airport buses, Taxis, Car rentals

Getting Around

Japan is built for transit. On the main islands, trains are the fastest way to move between cities, while domestic flights make north-south jumps efficient.

For diving:

  • Okinawa's main island is easiest with a rental car for flexible shore and boat meetups.
  • Remote islands often have limited buses and taxis, so pre-book transfers or choose accommodations near ports.
  • In colder regions (Hokkaido, Tohoku), a car can be the most practical option for reaching coastal dive points.

If you are carrying heavy gear, consider luggage forwarding so you can travel light on trains.

Entry Requirements

Entry rules depend on your nationality and passport. Check Japan's official visa information (MOFA) well before travel.

Common planning steps:

  • Confirm whether you need a visa or can use a visa waiver.
  • Use the official Visit Japan Web service if it is available for your trip to streamline arrival procedures.
  • Review customs rules for medications, food, and gear batteries.

Always verify the latest requirements close to departure, especially if you are transiting multiple countries.

Gear Logistics Checklist

Most dive hubs rent full kits, but bringing a well-fitting mask, computer, and exposure protection can improve comfort.

Practical tips:

  • Many operators primarily support yoke regulators; pack a DIN adapter if needed.
  • Nitrox availability varies by region and operator. Confirm in advance if it is essential for your plan.
  • Use Japan's luggage forwarding services to ship bulky bags between cities when doing multi-region itineraries.
  • For winter and ice diving, confirm drysuit support, undergarment drying options, and backup plans for weather cancellations.

Practicalities

Currency

Japanese Yen (JPY)

Cards and mobile payments are widely accepted in cities and major tourism hubs. On smaller islands and in rural coastal towns, small restaurants, taxis, and local ferries may still prefer cash.

ATMs are easy to find in cities. The most reliable nationwide option is convenience store ATMs, which are common even in smaller towns, but outer islands can still have limited access. Carry backup cash for multi-day island hops.

Electricity

100V • 50Hz/60Hz • A, B

Frequency varies by region (east versus west). Most modern chargers handle both, but check your gear, especially if you travel with camera battery systems.

Communications

Tourist eSIMs, SIM cards, and pocket Wi-Fi rentals are common at airports and online. Coverage is strong in cities and along main rail corridors, but remote islands and some coastal roads can have weaker signal. Download offline maps for island days.

Language

Japanese is the main language. In Okinawa and popular dive hubs, many operators support English, but not all. Learn a few basics, use translation apps, and confirm safety briefings clearly before entering the water.

Insurance

Carry travel insurance that covers adventure activities and add dedicated dive insurance if you plan deeper or more technical profiles. This matters most for current-prone dives and for cold-water or ice diving in the north, where evacuation can be weather-limited.

Packing list

Pack for the region, not the country.

  • Okinawa and the southern islands: water often sits around 24°C to 29°C by season.
  • Tokyo-area and Izu: expect a wider swing, roughly 19°C to 28°C.
  • Sanriku and northern Honshu: cooler, roughly 8°C to 21°C.
  • Hokkaido and the Sea of Okhotsk: cold-water planning, roughly 3°C to 17°C, with winter ice conditions.

Bring reef-safe sunscreen, a rash layer for boat days, and a surface signaling kit (especially if you do boat dives). If you travel with camera gear, pack spare O-rings and a dry storage solution for humid summer conditions.