Walk Osaka with FOG
Osaka is flat, dense and built for walking, which makes it one of the more satisfying cities to clear. FOG keeps the record of every street you have actually stood on.
Flat delta, one big spine
Osaka sits on the delta at the mouth of the Yodo River, and it is flat almost everywhere a walker will go. The city was built on water, cut by rivers and canals, and Nakanoshima is still an island sitting between the Dojima and Tosabori channels with a park down the middle of it.
The spine is Midosuji, the wide boulevard lined with ginkgo trees that runs north to south and joins Kita to Minami. Walk it from Umeda down through Honmachi and Shinsaibashi to Namba and you have crossed the whole working centre of the city in about an hour and a half. It is the single most efficient line you can draw through Osaka's fog.
Where the grid stops helping
The main avenues are orderly and easy. Everything between them is not. Osaka's back streets are narrow, they wander, and Japanese addresses are built on blocks rather than street names, so signposting will not save you the way it does in a Western grid. You navigate by landmarks, station exits and river crossings.
That is good for the map. The gaps between big roads are exactly where the fog stays, and the only way to clear them is to give up on a destination and turn down something small. Nakazakicho, just north of Umeda, is a good place to practise: low wooden houses and lanes barely wide enough for a bicycle, sitting a few minutes from one of the largest station complexes in the country.
An afternoon route
Start at Osaka Castle and walk the park, which is broad enough to eat a decent chunk of fog on its own. Head west to Temmabashi, cross to Nakanoshima and follow the island's length past the old brick library and the city hall. Come off it at Yodoyabashi, pick up Midosuji, and go south through Shinsaibashi to Dotonbori.
From the canal, keep going. Namba turns into Nipponbashi, then Shinsekai under the Tsutenkaku tower, then Tennoji and its park. That is a straight north to south traverse of central Osaka, roughly ten kilometres, and it burns a wide corridor through the middle of the map in one go.
Heat, roofs and practical notes
Summer is the real constraint. July and August are hot and heavy with humidity, and the rainy season in June will soak you properly. October and November are the good months, and winter is cold but dry and perfectly walkable.
Osaka also has a lot of covered shopping arcades, Tenjinbashisuji among them, and under a solid roof the GPS can lose the thread for a stretch. The track picks up again when you come out the other end. Background exploring means you can keep the phone away while you eat, and the walk still gets recorded. The city percent here climbs faster than in a sprawling city, because central Osaka is compact and almost all of it is on foot.
Questions people actually ask
Does FOG work in the covered arcades?
Sometimes not. Under a full roof the phone can lose GPS and that stretch may stay foggy. Outdoor streets record normally.
Can I cover Osaka and Kyoto in the same map?
Yes. FOG is one world map. Anything you walk anywhere is revealed on the same map, and named places you stand in are collected as you go.
Is there a subscription?
No. FOG is free to explore, and one purchase of 5.99 USD unlocks unlimited ranks, every character and history import. There is no subscription.
Does it drain the battery walking all day?
Background exploring keeps revealing with the app closed and the screen off, which is the low-effort way to walk a long route without holding the phone.
Start with a dark map.
FOG is free to explore. No account, no subscription, and your map never leaves your phone.
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