Menus and labels are in English. Event information is machine-translated from Japanese sources, and place details (names, descriptions, opening hours) are shown in Japanese.
Real Mystery Solving Game: The Mystery Sleeping in Oshi Castle - Legendary Treasure
An interactive real-life mystery-solving game set in and around Oshi Castle. Participants become the protagonists, solving mysteries hidden inside and outside the castle grounds while enjoying sightseeing on an adventure seeking legendary treasure.
The event information is machine-translated from Japanese. Check the official information for the latest details.
- DateWed, Apr 1, 2026 – Wed, Mar 31, 2027
- Venue行田市郷土博物館Oshi Castle, Gyoda City Local Museum, and surrounding area
- Fee¥800 per kit (*Facility admission fee required separately)
- BookingPurchase a kit to take on the mystery
Other events nearby on Nov 11
- Gyoda City Library Tamago StorytimeWed, Nov 11 · Gyoda · Library Story Roomabout 2.0 km
- Sainokuni Eastern and Northern Museum Kids Stamp RallySat, Jul 18 – Sun, Nov 29 · Gyoda · 行田市郷土博物館about 100 m
- The 39th Special Exhibition: Oshi Domain: 100,000 KokuSat, Oct 10 – Mon, Nov 23 · Gyoda · Gyoda City Local Museum Special Exhibition Roomabout 100 m
- Play Ball with Parents and Kids at Kumagaya Sports and Culture ParkWed, Apr 1, 2026 – Wed, Mar 31, 2027 · Kumagaya · 熊谷スポーツ文化公園about 5.2 km
Details
- Source
- 行田おもてなし観光局
- Name at the source
- 「忍城に眠る謎 〜伝説の秘宝〜」待望の第二章が登場！
Organized by AI from the official page. Check the official page for the latest information.
Venue map
Around the venue
The venue, 行田市郷土博物館, is about 800 m in a straight line from 行田市 Station. Nearby parks you can visit after the event: 本丸児童公園 (about 300 m), 水城公園 (about 600 m), 行田市総合公園 (about 1.9 km). On rainy days, indoor places such as 忍城NINJA体験 (about 300 m) are an option. On Nov 11, 4 other events are also held nearby.
Nearest stations
- 行田市 Station (秩父鉄道)about 800 m
- 持田 Station (秩父鉄道)about 1.0 km
Nearby parks
Indoor places for rainy days
- 忍城NINJA体験Hands-on activities · 松プラン6,500円、竹プラン2,500円、梅プラン500円about 300 m
- 埼玉県立さきたま史跡の博物館Museum · 一般200円、高校生・学生100円、中学生以下無料about 2.5 km
- 行田市はにわの館Hands-on activities · 入館無料（はにわ作り：粘土1kg700円・2kg1,200円、土笛作り：650円、発掘体験：1,000円など）about 2.6 km
Distances are straight-line from the venue. Park and facility pages show their sources and check dates.
“Walks” events in other cities
- 2026Thu, Nov 12
Hiki District Cultural Property Tour: Exploring the Cultural Properties of Higashimatsuyama and Karako
A walking event to explore historical cultural properties in the Karako area of Higashimatsuyama City, including Karako Shrine, the ruins of Aotori Castle, and Wakamiya Hachiman Kofun, accompanied by explanations from cultural property staff. Enjoy an approximately 8-kilometer walk while connecting with local history.
- 2026Thu, Nov 12
Monthly Citizens Walking (Ooka Civic Activity Center)
A walking event held in various districts across the city to promote health and social interaction among residents. Participants can stay active by walking a course of around 5 to 8 kilometers within the city. Registering a passport allows walkers to aim for completion certificates and enjoy staying healthy.
- 2026Sat, Nov 14
Come Visit! Tone PR Caravan Riddle-Solving Event
A free event solving riddles about the Tone region hidden throughout the amusement park. After solving the riddles, participants can enter a raffle to win prizes, and Saitama Prefecture's popular mascot Kobaton will also make an appearance.
- 2026Sat, Nov 14+1 more date
Murakimi and Mitagaya History Walk (Murakimi Area)
A walking history tour visiting cultural properties such as shrines and temples scattered throughout the Murakimi area. Explore Gobozuka Kofun, Sotokuin Temple, Raiden Shrine, and more to experience the local rich history and culture up close.