2025.12.15

[Grand Mercure Lake Biwa Resort & Spa] 【Mercure Kyoto Miyazu Resort & Spa】In-house tour activity “History and Culture x Mystery Solving” to enjoy while touching the history and culture of each region will start at two hotels on December 26, 2025

All-inclusive and a new activity "Mystery Historia" will be added to make your stay more enjoyable during the year-end and New Year holidays.

Located on the banks of Lake Biwa, the resort hotel "Grand Mercure Lake Biwa Resort & Spa" (Location: Nagahama City, Shiga Prefecture / General Manager: Mitsuharu Hashime) and the hill overlooking Miyazu Bay, the resort hotel "Mercure Kyoto Miyazu Resort & Spa" (Miyazu City, Kyoto Prefecture / General Manager: Kuniyasu Satonaka) overlooking Japan's three most scenic spots "Amanohashidate" will be held from December 26, 2025 (Friday).

Background of implementation

"Hanare Journey" is a new style of travel proposed by Grand Mercure and Mercure that is a "unknown area" one step away from the center of the tourist destination. To further enhance this value, the historical mystery solving program "Mystery Historia" was born. Under the theme of great people and anecdotes living in Lake Biwa and Tango, and the stories of Nanahime Tango and the Toyotomi brothers, we invite you to an intellectual adventure where you can experience local stories as an experience. By incorporating experiences that unravel history in addition to superb views and food culture, travel evolves from "seeing and eating" to "think and discover". The more you solve the mystery, the more the charm of the land is engraved in your heart. In addition, it is an indoor content that can be enjoyed regardless of the weather, so it is compatible with Nagahama City's "Larcation System" and is ideal for family trips and workcations.
By experiencing this program, we will provide the value of a new journey that connects with the community, with the hope that it will be a catalyst for visiting the region.

Solving Mystery in Grand Mercure Lake Biwa Resort & Spa

The Kitaoumi Toyotomi Exposition, including the Taiga Drama Museum, will be held in February in Hidenaga Toyotomi, the main character of the 2026 Taiga Drama drama series, and Nagahama City, a land related to his brother Hideyoshi.
In Grand Mercure Lake Biwa Resort & Spa, under the support of the Nagahama City Board of Education and the Toyotomi Kitaoumi Exhibition, we will conduct a mystery solving activity in Nagahama, which was ruled by Hideyoshi Hashiba.
In this activity, customers participate in the story as their younger brother Hidenaga, and in cooperation with their older brother, Hideyoshi and vassal, Sakichi Ishida, search for the hidden treasures that sleep in the Asai family. The hotel location Nagahama (formerly Kitaoumi) is a place related to the Hidenaga and Hideyoshi brothers. By superimposing Kitaoumi at that time in the hotel hall and solving the mysteries scattered around various places, we will combine history, stories, and thoughts, and enjoy this experience in which the stage of history and the modern space intersect You can experience and learn deep history.

[Experience image]

Download the dedicated app from the QR code and start it.
There is a QR code in a place where the hotel looks like a scenic spot in each region, and when you read it, you will be given a mystery related to the scenic spot and the story.
In line with the story, we will go around the museum and solve all mysteries.

[Introduction of story]
The Sengoku period (period of warring states): Oomi Province
After a long battle, Nobunaga Oda finally defeated his enemy Nagamasa Asai, gave Hideyoshi Hashiba the former territory of the Asai family to succeed in this battle. Hideyoshi and his younger brother, Ichiro Ko (later Hidenaga), created a new town in Nagahama and worked hard day and night as a new rice castle owner.
One day, Hideyoshi, who was worried about money policy, hears rumors in the castle town that the legacy of the Asai family is still sleeping somewhere.
There, a smart boy, Sakichi Ishida (later Mitsunari), came to report saying, "Nagamasa Asai's hidden letter has been found."
The letter may indicate whether the Asai family's treasure is a treasure.……？
You become Koichiro, and travel around Kitaoumi with Hideyoshi and Sakichi to search for hidden treasures of the Asai family.……。

[Summary]
Start of the event: From December 26, 2025 (Fri)
※The estimated time of the experience is 30 to 60 minutes.
※The contents may be changed due to hotel circumstances, and there are closed days and excluded days.
Price: Included in the all-inclusive plan.
Remarks: ・It will be an activity for guests only. No reservation required.
・The contents are subject to change depending on the situation.
・This is an experience using the Internet environment and smartphones and tablets.
・Your own communication fee may be charged.
Planning and production: RiddleUP, Production Cooperation: ASATEC Co., Ltd.
Supported by: Nagahama-shi Board of Education
Kitaoumi Toyotomi Exposition Executive Committee
URL： https://grand-mercure-lakebiwa-resortandspa.jp/lp/mystery-quest

Solving Mystery in Mercure Kyoto Miyazu Resort & Spa

In Mercure Kyoto Miyazu Resort & Spa's puzzle, a time-slip customer walks through the hotel with Galasha, one of the Seven Tango Princesses, to unravel the mystery based on the surrounding landscape. You will see the hotel as Tango Country, and experience the world view that combines the historical stage and hotel space while touching on the legend of Nanahime Tango transmitted to Tango. By searching for "Hishime-kun's Story" and solving the mystery set up in various places of the hotel, you can enjoy the feeling of traveling around Tango (Ine, Isosan, Tateiwa, Iso Beach, Yura Minato).
In devising the content for solving this mystery, we emphasized being able to touch the traditions and local specialties that remain in the Tango region, and provided the "Miyazu City Board of Education" and "Inecho Tourism Association" with the cooperation of providing information. Was. Together with Nanahime Tango, you will enjoy an experience of thinking about history while learning.

[Experience image]

[Introduction of story]
Garasha Hosokawa, who came to the new land as the wife of Miyazu Castle, was given a mysterious map by a monk, a castle town, along with the story of "The Story of Six Princesses".
The map seems to indicate where to go next……。
When I tried to search for six scrolls that were supposed to have written a story to learn about Tango's country, I encountered you who slipped back in time. You decide to unravel the mystery with Galasha and look for six scrolls!
Garasha's Mystery Solving Tango Tabi begins here―

[Summary]
Start of the event: From December 26, 2025 (Fri)
※The estimated time of the experience is 30 to 60 minutes.
※The contents may be changed due to hotel circumstances, and there are closed days and excluded days.
Price: Included in the all-inclusive plan.
Remarks: ・It will be an activity for guests only. No reservation required.
・The contents are subject to change depending on the situation.
・This is an experience using the Internet environment and smartphones and tablets.
・Your own communication fee may be charged.
Planning and production: RiddleUP, Production Cooperation: ASATEC Co., Ltd.
Cooperation: Miyazu City Board of Education, Ine Town Tourism Association
URL： https://mercure-kyotomiyazu-resortandspa.jp/lp/mystery-quest

Grand Mercure Lake Biwa Resort & Spa

: A calm Lake Biwa spreads in front of the hotel

: Have a healing time in the hot spring open-air bath

: A buffet restaurant where you can enjoy a meal while watching Lake Biwa

Located on the banks of Lake Biwa, it is a resort hotel with a view of the calm lake spreading in front of you. The sunset, which was selected as one of Japan's Top 100 Sunsets, is spectacular. It has good access to sightseeing spots such as "Kurowabe Square" and Chikubushima Cruise Shipyard, making it a convenient place for sightseeing in and around the city.
[Location] 38 Oshima-cho, Nagahama City, Shiga Prefecture 526-0066
【TEL】 03-6743-6550 (Reservation Center)
[Access] Free pick-up service is available from JR Nagahama Station West Exit (Biwako Exit). About 15 minutes by car from Nagahama IC on the Hokuriku Expressway.
【URL】 https://grand-mercure-lakebiwa-resortandspa.jp/

Mercure Kyoto Miyazu Resort & Spa

: Location facing Miyazu Bay

: Making only one Misanga in the world

: [Limited Time] Strawberry picking at his own farm

A resort hotel where you can see Amanohashidate, one of the three most scenic spots in Japan, from a hill overlooking Miyazu Bay, and enjoy Kyoto in the sea. As a "Local Discovery-Regional Experience-", you can also enjoy making 100% silk misanga unique to the birthplace of Tango crepe in an all-inclusive manner.
[Location] 58 Iwamoto, Koaza Tai Koaza, Miyazu City, Kyoto 626-0068, Japan
【TEL】 03-6627-4666 (Reservation Center)
[Access] About 12 minutes by taxi from Miyazu Station on the Kyoto Tango Railway, and about 15 minutes by car from Miyazu Amanohashidate IC on the Kyoto-Jukan Expressway.
【URL】 https://mercure-kyotomiyazu-resortandspa.jp/

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