420+ field-tested travel guides across every Japanese prefecture, by Nobu — written from places he has actually stood in.
Field Notes from Every Prefecture
420+ articles, written from the places I actually stood in. Filed by region, by season, by what the trip is really about.
Yamaguchi · Karst · Limestone Cave By Nobu, hiddenjapan-gems.comUpdated August 2026Fees, hours & access checked against official Mine City sources Akiyoshido’s main entrance, where the underground river runs back out of the mountain — the way most visitors walk in.…
Doai Station on the JR Joetsu Line in Minakami, Gunma is Japan's 'mole station': its down-line platform sits about 70 m underground, reached by a staircase of 486 steps. What to expect, the sparse train times, the cafe and glamping, and how to fit it into a Minakami trip.
Sasagawa Nagare in Murakami, Niigata is an 11 km stretch of wave-carved Sea of Japan coast. A guide to the ~40-minute pleasure cruise (about ¥1,200, late March–mid November), the coastal drive on Route 345, reaching it by train via Kuwagawa Station, and where to stay in Murakami and Senami Onsen.
Sawara in Katori, Chiba is an Edo-era canal town near Narita: a 30-minute sappa-bune boat ride (¥1,300), preserved merchant storehouses, and the home of Ino Tadataka, who drew Japan's first accurate map. Fares, access and how to fit it into a Narita layover.
Japan · Summer · Self-Drive By Nobu, hiddenjapan-gems.comUpdated August 2026Fares, hours & 2026 closures checked against official sources Highland pasture at Hiruzen, Okayama — the kind of 500–1,000 m country where a Japanese summer finally lets up. The quickest way…
Osaka's Naniwa Yodogawa Fireworks Festival fires October 17, 2026, 19:00-20:00. Every seat type and price, the closed Umeda-side riverbank, access stations and the timing rules - verified against the organiser.
From the dark fields at the foot of Mt. Fuji, the next meteor shower worth planning a night around is the Geminids on December 14, 2026: the National Astronomical Observatory of Japan expects about 60 meteors an hour from a…
Five museums within day-trip range of Tokyo where architecture and gardens carry the day: MOA Atami, the Art Deco Teien, Okada in Hakone, Kengo Kuma-s Nezu, and the Itchiku Kubota Museum at Kawaguchiko - 2026 fees, hours and access verified.
Japan-s joyful trains, verified against the JR companies: which of 20 sightseeing trains are running in 2026, how to book each from abroad, what the Rail Pass really covers, and the ten picks worth building a trip around.
Ten waterfalls in Tochigi, from Kegon-s 97-metre plunge to a 65-metre-wide curtain five minutes from a station named Taki. Heights, buses, parking and 2026 trail status, all from official sources.
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Nearly every image on Hidden Japan Gems was photographed by me on a Sony α7 across five years of walking Japan; a few licensed photos fill the gaps. Please don't re-use my photos without permission — reach out if you'd like to.
For licensing, write to hello@hiddenjapan-gems.com