Manhole GO: Collect Cards

Dive into a one-of-a-kind treasure hunt across Japan with Manhole GO.
Discover manhole cards (マンホールカード), free collectible cards inspired by Japan’s uniquely designed manhole covers.

Find distribution locations on an interactive map, browse the full catalog (by series, category, or prefecture), and manage your collection as you explore.
Don’t speak Japanese? No problem: Manhole GO can translate each card’s distribution details to help you plan your visits.

Save your collected cards, favorites, and wanted cards to plan your next discoveries, then pick up where you left off across all your devices.

Switch to Expedition mode for your field trips: plan a smart route to grow your collection, make more discoveries, and explore new places.

No ads, no personal data collection.

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