Hoheikyo Onsen - A Tattoo-Friendly Hot Spring in Sapporo, Hokkaido

Steam rises off water that stretches out like a pond. The rotenburo at Hoheikyo is enormous — river stones from Hidaka line the bottom, rough volcanic rock from Mount Yotei frames the edges, and the forest-covered mountains of Jozankei fill every sightline. In winter, snow falls directly onto the surface while you soak. No barrier, no glass. Just hot water and cold sky.

Hoheikyo is a day-use onsen about an hour south of central Sapporo, past the Jozankei hot spring district and further up the Toyohira River gorge. The spring water flows straight from the source — no dilution, no recirculation, no temperature adjustment. The indoor baths run hotter, around 42°C. The outdoor bath sits cooler, closer to 39°C, built for staying in. Two bathing areas swap between men and women daily, so repeat visitors come back to try both sides.

After soaking, you'll find a restaurant serving North Indian curry and fresh naan baked in a tandoor oven — an unlikely pairing with a mountain onsen that somehow became the thing regulars talk about as much as the water. If you want an authentic source-flowing onsen near Sapporo where tattooed guests bathe openly alongside everyone else, this is the one locals point to first.

• Tattoos Accepted, No Covers Needed: Dozens of recent reviews from both Japanese and international visitors confirm tattooed guests bathe in all areas without restriction — staff don't bat an eye.
• 100% Source-Flowing Spring Water: Gensen kakenagashi — no dilution, no heating, no recirculation. The spring surfaces at 51°C and flows directly into the baths, leaving calcium deposits that coat the indoor bath floor in rippled, cave-like formations.
• One of Hokkaido's Largest Outdoor Baths: The rotenburo spreads wide enough to feel like a natural pool, with variable depths for neck-deep soaking or shallow reclining — and an unbroken view of forested mountains that turns to snow country in winter.
• The Curry Nobody Expects: A full North Indian kitchen with Nepalese cooks, a tandoor oven, and naan that tears apart in sheets. It has no business being this good at a mountain onsen, and half the reviews mention it before they mention the water.

The outdoor bath hits you with scale first. It opens wide across the hillside, shallow enough to recline in some spots, deep enough to sink to your shoulders in others. The water is soft and faintly tinted — iron traces give it a light brownish cast, and the alkaline spring leaves skin feeling slick and polished after twenty minutes. Locals call it "velvet water."

Inside, the baths run hotter and the floor tells a story — years of mineral deposits have built up into rippled, calcified formations underfoot, almost cave-like. The two bathing areas (無意根の湯 and ふくろうの湯) alternate between men and women daily, each with a different layout and view. In winter, the contrast between the 39°C outdoor water and sub-zero mountain air sharpens everything — snowflakes dissolve on the surface while your breath hangs visible above it.