It's Not Just Caviar!? Encountering the Charms of Sturgeon and the Bounty of Southern Shinshu: A Gastronomic Experience at Hoshifuri no Yado Yamaboshi.

At "Ten-nen Onsen Achi Hoshifuri no Yado Yamaboshi" in Achi Village, Nagano Prefecture, we will continue to offer our irori (hearth) kaiseki plan featuring sturgeon raised in Southern Shinshu in 2026.

This initiative began with the desire to introduce the yet-unknown deliciousness of sturgeon, famous for its caviar, to more people, and to promote it as a new specialty of Southern Shinshu.

This second installment of our sturgeon kaiseki offers a rich experience where you can fully enjoy both sturgeon and the blessings of Southern Shinshu.

"It's not just caviar!?" Experience such a surprising gastronomic delight at Yamaboshi.

A new proposal to savor the unknown deliciousness of sturgeon 'meat' raised in Achi Village, Nagano Prefecture, from sashimi to oyaki with sturgeon and nozawana, and even oyakodon topped with caviar.

This luxurious plan, making the most of Southern Shinshu's bounty, is offered with a caviar souvenir and free-flowing drinks, limited to June only. This experience, memorable for both the eyes and the palate, is truly a 'feast of fine food and sake.'

Furthermore, to commemorate the release of this plan, we will hold a tasting event inviting tourism bureau officials. We welcome media coverage.

The sturgeon irori kaiseki plan, limited to June, is available for reservations starting today.

[Ultimate] It's not just caviar!? A supreme irori kaiseki to fully enjoy sturgeon and the blessings of Southern Shinshu

×Free-flow plan (with souvenir caviar)

Menu Introduction

【First Course】

・Sturgeon Dashi with Fins

【Appetizers】

・Smoked Sturgeon

・Deep-fried Sturgeon Cartilage

・Sturgeon Nanbanzuke (marinated fried fish)

【Sashimi】

・Sturgeon Sashimi: To let you enjoy its crunchy texture without any peculiar taste, we have prepared it as a simple sashimi. Please enjoy it with finger lime and caviar.

【Steamed Dish】

・Sturgeon Oyaki: Savor the charm of Shinshu with oyaki made from sweet and savory simmered sturgeon meat and nozawana pickles.

【Grilled Dish】

・Sturgeon Hoba-yaki: Enjoy the fragrant and deep flavor wrapped in Shinshu miso and hoba (magnolia leaf), along with the ambiance of the irori hearth.

【Fried Dish】

・Sturgeon Kadaif Fried: Enjoy the fluffy and tender sturgeon with the crispy and light texture of the extremely thin Kadaif dough.

【Hotpot】

・Sturgeon Mini Hotpot: A hotpot filled with sturgeon and the blessings of Shinshu, served in a clear broth rich in umami and collagen extracted from sturgeon bones.

【Soup & Noodle Course】

・Sturgeon Dashi Soba: The hotpot is concluded with Shinshu soba. Enjoy it with dashi broth rich in the umami of sturgeon and mushrooms.

【Main Course】

・Sturgeon Oyakodon: Marinated sturgeon topped with plenty of caviar. Please enjoy the collaboration of parent and child.

【Dessert】

・Sour Cream Pudding with Caviar: A marriage of refreshing pudding and the perfect saltiness of caviar.

Plan Details

【Ultimate】It's not just caviar!? A supreme irori kaiseki to fully enjoy sturgeon and the blessings of Southern Shinshu

×Free-flow plan (with souvenir caviar)

One night, two meals, with free-flow drinks plan

・Dinner: Sturgeon and Caviar Irori Kaiseki

A kaiseki meal generously featuring sturgeon and caviar, including sashimi, oyaki, and sturgeon oyakodon, incorporating the rich blessings of Southern Shinshu.

Breakfast: Shinshu Salmon Basket Dish Chazuke Set

A dashi chazuke set carefully prepared with water and ingredients from Southern Shinshu. Please enjoy a breakfast that is gentle on your body.

【Plan Benefits】

・1 bottle of souvenir caviar [Tennyo no Hohoemi] (approximately 8 grams, worth 6,000 yen)

The Southern Shinshu brand caviar "Tennyo no Hohoemi," served in the sturgeon course, is provided as a souvenir. *Caviar will be given per adult making a reservation.

・Free-flow drinks included

An assortment of exquisite wines and Japanese sake collected from various parts of Nagano Prefecture, along with standard alcoholic beverages and soft drinks.

You can enjoy drinks without additional charge at the lounge and irori restaurant from check-in until the last order at 10 PM.

【Check-in/out】 15:00-18:30 / 10:00

【Reservation Start Date】 April 8, 2026 (for stays from June 1)

【Selling Price】 From 41,980 yen (per person when 2 people share)

About Tasting Coverage

Ten-nen Onsen Achi Hoshifuri no Yado Yamaboshi will hold a tasting event inviting tourism bureau officials to announce this plan.
The event aims to promote the culinary charm of Southern Shinshu, and interviews with the chef and photography will be possible on the day.
We invite media representatives to cover the event while actually tasting the dishes.

From 1:00 PM on Tuesday, April 21

Venue: 'Ten-nen Onsen Achi Hoshifuri no Yado Yamaboshi' Irori Restaurant

Interviews with the chef will also be possible on the day.

Media representatives wishing to cover the event, please contact the email address below.

Individual tasting interviews are also accepted, so please feel free to inquire.

Inquiries: press@achi-yamaboshi.com

About Yamaboshi

【Phone】0265-49-8098

【Check-in/out】15:00-18:30 / 10:00

【Address】2007 Komaba, Achi-mura, Shimoina-gun, Nagano Prefecture, 395-0303

【Access】

○By car

Approximately 7 minutes from Iida Yamamoto IC on the Chuo Expressway

○By train

Take a local bus from JR Iida Station, alight at Soyama Iriguchi bus stop, and walk for 5 minutes

○Parking: 20 spaces

【Official HP】https://achi-yamaboshi.com/

【Official Instagram】https://www.instagram.com/achi.yamaboshi_/

【About Coverage】

If you have any questions, please feel free to contact us at the address below.

Ten-nen Onsen Achi Hoshifuri no Yado Yamaboshi Public Relations: Koki Soga

TEL: 0265-49-8098

MAIL: press@achi-yamaboshi.com