What this is
Collect stamps at 18 shops along Dobuita Street in Yokosuka โ the famously American-flavoured strip near the US naval base โ and you could win a seat at a real submarine dining experience with the Japan Maritime Self-Defense Force. Participating restaurants and retailers offer special menu items developed in collaboration with the JMSDF's 2nd Submarine Flotilla, including Sub Sandwiches and Sub Dogs, alongside official merchandise. Prizes range from Yokosuka Navy Curry retort packs and tote bags to souvenir jackets, with the submarine dinner as the headline draw.
Who should go
Military history buffs, naval enthusiasts, and anyone curious about Yokosuka's unique blend of Japanese and American base culture. The format rewards those who enjoy eating and shopping their way around a neighbourhood rather than passive sightseeing.
Good to know
This is a self-guided stamp rally, so there is no single entry point โ pick up a stamp card at any participating venue on the day. The 18 shops span restaurants and retail stores along Dobuita Street, a short strip that is easy to navigate on foot. Yokosuka Navy Curry is a local institution and the retort packs make excellent souvenirs; stock is sometimes limited so aim to complete your stamps early in the day. English signage is more common here than in most Japanese shopping streets due to the area's long history with US base personnel, making it relatively foreigner-friendly. The submarine dining experience prize draw is the standout reward โ confirm the exact stamp threshold required for entry when you collect your card.
This event was sourced and translated from Japanese by What's On Japan. Details may change โ verify with the official source before attending.