What this is
This intimate evening experience combines traditional Japanese irori (sunken hearth) dining with a guided firefly viewing excursion in Osaka. Guests enjoy a multi-course duck meal cooked over a charcoal hearth, featuring appetizers, grilled duck and vegetables, duck hot pot, buckwheat noodles, and dessert. After dinner, around 8 PM, the group ventures out to the source of the Otsu Shigekawa river to witness wild fireflies dancing in the darkness. The experience is strictly limited to one group per day, accommodating between 3 and 8 people, making it an exceptionally rare and private encounter with both Japanese culinary tradition and natural wonder.
Who should go
This experience is ideal for couples, small families, or close-knit groups of friends seeking something genuinely memorable and off the tourist trail. Nature lovers and food enthusiasts alike will find the combination of seasonal firefly viewing and traditional irori cuisine deeply rewarding. The intimate, one-group-per-day format means the atmosphere is unhurried, personal, and far removed from crowded tourist attractions. Advance reservation is essential โ book as early as possible as availability is extremely limited.
Good to know
Reservations must be made in advance directly with Nagomi โ this is not a walk-in experience, and the one-group-per-day policy means slots are extremely scarce during firefly season. It is advisable to contact the venue by phone or email and confirm whether English communication is available, as smaller traditional restaurants in Osaka may have limited English-speaking staff. Bring cash as smaller traditional dining establishments in Japan frequently do not accept credit cards. The outdoor firefly viewing portion takes place near the Otsu Shigekawa river source, so wear comfortable closed-toe shoes and consider bringing a light jacket for the evening air in late May. Photography of fireflies is welcome but flash photography will be discouraged to preserve the natural environment.
This event was sourced and translated from Japanese by What's On Japan. Details may change โ verify with the official source before attending.

