right|thumb|250px|Beetle ferry is a hydrofoil ferry service that travels between Fukuoka, Japan and Busan, South Korea. It is operated by JR Kyushu Jet Ferry, a division of Kyushu Railway Company.
Although journey times are longer, ferry travel is generally much cheaper than flying, with direct connections available between several major Japanese port cities and China, Korea and Russia.
Ferry schedules are subject to seasonal changes and may vary according to the weather.
Beetle Ferries provide two seating areas and a duty-free shop.
Departure processing starts 2.5 hours before departure and ends 1 hour before departure. Passengers must fill out a boarding pass before travelling.
Arrival cards required to enter Japan are available on the ferry. They can be filled out at the same time as the Korean departure card.
The departure card (from Korea) must be filled out in Korean and English, while the arrival card for entry into Japan must be written either in kanji or English.
Travelers carrying expensive merchandise or valuables (cameras, watches, jewellery, fur products) are required to declare the item, quantity and price on the customs form. The document must be retained for the return trip.