Anime location
Mount Kumotori
Named in the official fanbook as the model for the main character's home. A full-day mountain, not a viewpoint.
Mount Kumotori is the highest mountain in Tokyo, standing on the border of Tokyo, Saitama and Yamanashi. It is identified in the official Demon Slayer fanbook as the model for the mountain where the main character's family lived — which makes it one of the few Demon Slayer locations with a stated source rather than fan inference.
Why it is worth it
Of all the Demon Slayer locations, this is the one with an official source behind it.
When to go
Quiet outside the autumn hiking season.
Good to know
This is a genuine mountain hike of several hours each way, not a sightseeing stop. Proper footwear, water and a check of the weather are required. If you want the connection without the climb, the view from the Okutama area is the realistic compromise.
Demon Slayer
Named in the official fanbook as the model for the mountain where the main character's family lived.