Mitsui Ocean Cruises has presented its “Summer in Japan Sale” for its 11 itineraries sailings from June to September 2026. 

With the promo, $1,000 onboard credit is available per suite or $500 per guest (based on double occupancy) on all summer sailings departing June 3 through September 19, 2026. 

A 15% commission is also available for travel advisors, the company shared in a press release. 

Operating the itineraries is the 458-guest Mitsui Ocean Fuji. Formerly sailing as the Seabourn Odyssey, the ship entered service for Mitsui in December 2024. 

Timed to coincide with the country’s festivals and fireworks displays, the immersive voyages offer guests a chance to experience the country through its food and culture. 

Shore experiences are included in most ports – ranging from guided half-day tours to full-day excursions with lunch or port shuttles, led by English-speaking guides. 

Food enthusiasts can look forward to a culinary journey hosted by four-time James Beard Award winner Chef Andrew Zimmern on July 27 in Tokyo, featuring pre-cruise market tours and exclusive dining experiences. 

The summer itineraries are: 

• Mystic Isles & Southern Shores (June 3-12, 2026): A nine-night roundtrip cruise from Kobe, visiting Tanegashima, Yatsushiro, Fukue, Hamada, Busan, Shimonoseki and Onomichi-Itozaki. 
• Coastal Charms & Cultural Crossings (June 12-17, 2026): A five-night voyage, roundtrip from Kobe, visiting Yawatahama, Nakatsu and Busan. 
• Fireworks & Island Rhythms (July 3-10, 2026): A seven-night cruise, roundtrip from Yokohama, with stops in Nakatsu, Yeosu, Shimonoseki and Aokata. 
• Pearl Coast Passage (July 10-17, 2026): A seven-night cruise roundtrip from Yokohama to Kobe calling at Toba, Yeosu, Karatsu and Sukumo. 
• Summer Fireworks Festival (July 17-23, 2026): A six-night voyage, roundtrip from Kobe, visiting Aburatsu, Nagasaki and Busan. 
• Festival of Lights (July 23-30, 2026): A seven-night cruise from Kobe to Yokohama visiting Yawatahama, Sasebo, Jeju and Kochi. 
• Andrew Zimmern Culinary Celebration + Nebuta Summer Festival (July 30 – August 8, 2026): A nine-night roundtrip sailing from Yokohama visiting Beppu, Busan, Akita, Aomori and Miyako, featuring the Nebuta Festival. 
• Coastal Elegance & Cultural Tapestry (August 8-16, 2026): Sailing from Yokohama to Tokyo with stops in Wakayama, Busan, Matsuyama and Komatsushima. 
• Southern Japan Fireworks (August 16-25, 2026): A nine-night roundtrip from Tokyo calling at Kumano, Kochi, Jeju, Kagoshima and Tanegashima. 
• Castles & Shrines (August 25-September 1, 2026): Roundtrip from Tokyo with visits to Munakata, Nagasaki, Jeju and Shimizu. 
• Autumn Equinox in Southern Shores (September 19-27, 2026): An eight-night roundtrip from Kobe visiting Hakata, Busan, Yatsushiro, Ibusuki, Naze and Tanegashima.