
Manhole Card Collection in Japan: How It All Started
While researching for my Japan trip, I stumbled across a charming and unexpected travel activity — collecting manhole cards. It’s like a real-world scavenger hunt, reminiscent of Pokémon Go, but with a unique twist.
The project was initiated by Japan’s water treatment department, cleverly turning something we often ignore — manhole covers — into collectible art and educational outreach. Each card features a beautifully designed manhole cover specific to its city or region, often incorporating local mascots, history, or landmarks.










This initiative not only raises awareness about infrastructure and water management but also draws visitors to lesser-known towns and government offices. It’s a brilliant fusion of education, tourism, and fun — something Japan excels at.
However, despite its charm, the manhole card project isn’t well-documented in English. Finding the official website or card locations often requires digging through forums or translated links.
Tips for Collecting Manhole Cards in Japan:
Use the Official Website:
Search for “マンホールカード” (Manhole Card) and use a browser translator to navigate the Japanese site: https://www.gk-p.jp/mhcard/. You’ll find a full list of card-issuing locations sorted by prefecture.


Plan Ahead:
Before your trip, pin card locations on Google Maps. I usually cross-check them with the places I plan to visit and save them to a custom list.
Check Operating Hours:
Most cards are distributed at local government offices or tourism centers. Make sure to double-check their hours — they’re often closed on weekends or national holidays.
One Per Person:
Each person is allowed to collect only one card per location, and you must be there in person to receive it.
It’s Free!
Collecting manhole cards is entirely free. Some places may ask you to fill out a short survey, but that’s it.
Final Thoughts:
If you’re planning a trip to Japan and want to add something truly unique to your itinerary, give manhole card collecting a try. It’s a fun, free, and surprisingly meaningful way to explore the country — and you might find yourself visiting places you’d otherwise miss.
Happy collecting!
Want to know how I collected over 30 manhole cards in one trip, read: 38 Days in Japan: Complete Itinerary, Routes & Practical Guide (Nakasendo, Kumano Kodo & Kyushu)
Aside from collecting manhole cards, sending postcards to friends is another simple joy. It’s incredibly easy in Japan — post offices and post boxes are everywhere. Read here for a quick guide.
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