YOKOHAMA, Japan – June 12, 2025 – In a landmark moment for Japan’s maritime industry, liquefied natural gas (LNG) was successfully supplied to the cruise ship Asuka III at the Osanbashi International Passenger Terminal in Yokohama Port. The operation, conducted from June 10 to 11, 2025, marked the nation’s first-ever LNG bunkering for a cruise vessel using the Truck-to-Ship method.
The achievement represents a significant step in Japan’s journey toward greener marine transportation and underscores the growing adoption of LNG as a cleaner alternative fuel within the cruise sector.
First in Japan: LNG Bunkering for a Cruise Ship
The LNG bunkering operation was executed using four LNG tank trucks positioned at the terminal. These trucks transferred LNG directly to Asuka III at berth using the Truck-to-Ship (TTS) method, an approach that enables flexible and scalable bunkering without requiring permanent pipeline infrastructure at the quay.
As part of the highly controlled operation, vapor clouds were observed forming around the fuel lines—a visual effect caused by the ambient air being chilled by the LNG’s cryogenic temperature of -162°C. These vapor plumes are a normal and safe phenomenon during such fueling operations.
A New Standard in Sustainable Cruising
Asuka III represents a new era of environmentally responsible cruising. The vessel is powered by a Tri-Fuel engine system capable of running on heavy fuel oil (HFO), marine gas oil (MGO), and LNG, allowing for flexible fuel usage and lower emissions. In addition, the ship is equipped with shore power reception systems, which enable it to draw electricity from land-based sources while docked, further reducing carbon and particulate emissions during port stays.
This next-generation eco-ship is designed to balance luxury with sustainability, showcasing Japan’s shipbuilding and operational innovation on the global stage.
Yokohama’s Role in Japan’s Carbon Neutral Port Vision
Yokohama, the home port of Asuka III, has long been a key maritime gateway for Japan and is now at the forefront of the country’s efforts to build Carbon Neutral Ports (CNP). These initiatives are aligned with Japan’s broader goal of achieving a carbon-neutral society by 2050.
As part of its CNP initiative, Yokohama Port is working closely with national and local authorities, shipping operators, and energy suppliers to reduce emissions from maritime traffic and improve port-side infrastructure. The successful bunkering of Asuka III is a major milestone in demonstrating how LNG can be safely and effectively integrated into Japan’s port operations.
Vessel Specifications: Asuka III
- Port of Registry: Japan / Yokohama
- Overall Length / Width: 230 meters × 29.8 meters
- Gross Tonnage: 52,265 GT
- Draft: 6.7 meters
- Max Speed: 20 knots
- Passenger Capacity: 740
- Crew Members: Approx. 470
- Rooms: 381 cabins, all with private balconies
- Stabilization: Fin Stabilizer system
Note: The above vessel specifications are current as of March 2025 and may be subject to updates.
About Asuka Cruise
NYK Cruises, a subsidiary of the NYK Group, operates Japan’s premier luxury cruise brand under the name Asuka Cruise. With a commitment to comfort, safety, and environmental stewardship, Asuka Cruise offers domestic and international voyages that blend traditional Japanese hospitality with modern cruising innovation. The introduction of Asuka III reflects the company’s commitment to sustainable tourism and marine decarbonization.
About NYK Line
Established in 1885 in Japan, NYK Line, formally known as Nippon Yusen Kabushiki Kaisha, has emerged as a global leader in the maritime industry over its 135-year history. Operating a diverse fleet, including container ships, bulk carriers, and tankers, NYK serves over 800 locations worldwide, offering a comprehensive suite of shipping services.
NYK Line has earned recognition for its commitment to innovation, sustainability, and safety, navigating the complexities of global logistics with diligence and foresight. This ongoing dedication underscores NYK’s pivotal role in shaping the future of ocean transport and reaffirms its status as a cornerstone of the maritime landscape.
Source NYK Group