Ask most travelers about cycling in Japan and they will mention the Shimanami Kaido or the routes around Kyoto and Nara. Almost no one mentions San’in, the stretch of Tottori and Shimane prefectures running along the Sea of Japan on the western side of Honshu — and that is precisely its appeal. San’in has sand dunes, jagged geopark coastlines, sleepy fishing towns, hot springs that see almost no foreign visitors, and a growing network of dedicated cycling routes, all without the crowds that now define Japan’s better-known cycling destinations. For riders who want genuine solitude on the road along with dramatic scenery, San’in is one of the country’s best-kept secrets.
This guide covers the region’s key routes, from Tottori’s ambitious coast-to-coast crossing to Shimane’s lakeside rides around Matsue, along with the practical details needed to plan a trip.
Why San’in Rewards Cyclists
San’in’s appeal starts with geology. Much of the Tottori coastline sits inside the San’in Kaigan Geopark, a UNESCO-recognized area where volcanic cliffs, sea caves, and rock formations shift dramatically from one stretch of coast to the next. A short ride can take you past the famous Tottori Sand Dunes, the largest dune system in Japan, and then into a completely different landscape of pine-covered cliffs and hidden coves within an hour.
The region has also invested deliberately in cycling as tourism infrastructure. Tottori Prefecture built the “Tottori Odan Cycling Route,” known locally as Umi-nami Road, specifically to give riders a way to experience the prefecture from coast to coast, and has been working toward having it designated a National Cycle Route. Shimane, meanwhile, has developed routes around Lake Shinji and the Nakaumi lagoon near Matsue, and connected its network eastward to link with Tottori’s routes and westward toward the Yamanami Kaido and, eventually, the Shimanami Kaido near Onomichi — meaning an ambitious rider could, in theory, cycle a connected route of well over 450 kilometers from the Hyogo border all the way to Ehime.
Traffic is another reason San’in works so well for cycling. The completion of the San’in Expressway has pulled much of the through traffic off the old coastal Route 9, leaving long stretches of quiet local road ideal for road and gravel riding alike.
1. Tottori Odan Cycling Route (Umi-nami Road) — Crossing the Prefecture Coast to Coast
The signature ride in the region is the Tottori Odan Cycling Route, a roughly 138-kilometer course connecting Higashihama Station near the Hyogo border in the east to Sakaiminato Station near the Shimane border in the west, with about 851 meters of cumulative elevation gain. Rather than following a single continuous bike path, the route links together the best existing roads and coastal paths across the prefecture, marked with wayfinding signage at turns and at regular intervals, and designed so that JR rail lines run close to the route for most of its length, making it easy to break the ride into shorter segments with a train as a shortcut or an exit point.
Riders can start from either end; a common approach is to base in Tottori City, travel light with a compact rinko setup, and ride out and back over one or two days, using the train to return to the starting point once finished. The terrain is not mountainous, but the elevation is spread out in a long series of gentle ups and downs along the coast, so it demands steady endurance more than climbing strength.
Along the eastern section, near Iwami Town, the route passes through some of the most scenic parts of the San’in Kaigan Geopark. The Uradome Coast, stretching about 15 kilometers, is known for water so clear it has earned the nickname “Iwami Blue,” with pine-studded islets and coves visible right from the road. Nearby, the Yokoo rice terraces, recognized as one of Japan’s top 100 rice terrace landscapes, offer a striking contrast of cultivated hillside against the sea, and Iwai Onsen, said to be the oldest hot spring in the San’in region with roughly 1,300 years of history, makes a natural overnight stop. Further along, the route passes near Amadaki Falls, one of Japan’s top 100 waterfalls, and close to the ruins of Tottori Castle before reaching the dunes themselves.
In the central section, riders pass near Misasa Onsen, a radium hot spring town with its own local cycling map covering short loops of roughly 7, 13, and 16 kilometers for anyone who wants to base there and explore the surrounding area at an easier pace before rejoining the main east-west route.
The western end of the route approaches Sakaiminato and the Nakaumi lagoon, setting up a natural connection into Shimane Prefecture’s cycling network for riders who want to keep going rather than turn back.
2. Yumigahama Cycling Road and the Nakaumi Loop
Where the Tottori route meets Shimane, the Yumigahama Cycling Road picks up along the narrow sand spit that separates the Sea of Japan from Nakaumi lagoon, near Yonago and Sakaiminato. It’s a short, flat, breezy stretch of dedicated cycling path along the coast, popular with local riders as an easy warm-up or cool-down section, and it connects naturally into longer loops around the Nakaumi lagoon toward Matsue.
A well-regarded loop for visiting riders runs from central Matsue out along the Yumigahama path, around the edge of Nakaumi to the roadside station Ara Essa — a good rest stop with bike stands and local snacks — and on to the Adachi Museum of Art, famous internationally for its Japanese garden and a magnet for visitors even outside the cycling crowd. This loop covers the greatest hits of the Matsue area in a single day: castle town streets, lagoon views, and one of the country’s most celebrated gardens, and is approachable for intermediate riders without serious elevation to worry about.
One landmark worth knowing about in advance is the Eshima Ohashi Bridge, a large arched bridge across Nakaumi that became famous through a television commercial for its dramatic, almost vertical-looking rise. It is a genuine attraction to see or photograph, but the approach is steep with narrow lanes and can carry heavy car traffic, so cyclists are generally advised to dismount and use the pedestrian walkway rather than ride the roadway itself.
3. Yamanami Kaido Cycling Road — Toward Hiroshima
For riders looking to extend a trip well beyond San’in’s coastline, the Yamanami Kaido Cycling Road offers a long-distance inland option connecting Matsue Shinjiko Onsen Station in Shimane to Onomichi Station in Hiroshima Prefecture, following the Yamanami Kaido expressway corridor south through the mountainous interior of the Chugoku region. This route was developed in coordination between Shimane, Tottori, Hiroshima, and Ehime, with the explicit goal of linking San’in’s coastal routes to the Shimanami Kaido, one of Japan’s most famous cycling courses connecting Honshu to Shikoku across the Seto Inland Sea. Combined end-to-end, the full connected route from Tottori’s Higashihama coast through Nakaumi, Lake Shinji, the Yamanami Kaido, and the Shimanami Kaido to Matsuyama in Ehime runs to roughly 457 kilometers — a serious multi-day undertaking, but one that turns a regional trip into a genuine cross-country cycling tour for anyone with the time.
4. Matsue and Lake Shinji — An Easy Base for Exploring
Matsue itself, with its preserved castle and canal town atmosphere, makes an excellent base for cyclists who want a mix of easy riding and sightseeing rather than long-distance touring. Lake Shinji, known for its sunsets, sits right at the edge of the city and offers a flat, easy loop popular with locals for an evening ride, with several well-placed spots along the western shore considered among the best sunset viewing points in the region. From Matsue, day rides can reach out toward Nakaumi and Yumigahama in one direction or toward Izumo, home to Izumo Taisha, one of Japan’s most significant Shinto shrines, in the other, making the city a practical hub for riders who prefer a series of day loops to a fully loaded touring itinerary.
Practical Tips for Riding San’in
Getting there: Tottori and Matsue are both reachable from Osaka and Okayama by limited express train, and both cities have airports with connections to Tokyo, making a weekend trip realistic even without a full day of travel on either end. JR lines run close to most of the coastal cycling routes, so rinko travel with a disassembled bike is a practical way to shorten or extend a ride as needed.
Bike rental: Tottori City offers rental bicycles near Tottori Station, and Misasa Onsen has its own local rental and mapping service for shorter loops. Shimane’s tourism office publishes cycling maps covering the Matsue, Nakaumi, and Yamanami Kaido routes, generally available through the prefectural tourism website.
Best season: Spring and autumn offer the most comfortable riding temperatures and the clearest coastal visibility. Summer is ridable but hot and humid along the coast; winter brings strong winds and occasional snow inland, particularly on the Yamanami Kaido section, so coastal routes are generally the safer winter option if riding off-season.
Food along the way: San’in is known for its seafood, particularly matsuba crab in the colder months, and for regional specialties like Tottori’s gyudon variations and the shijimi clams harvested from Lake Shinji, often served as miso soup. Roadside stations along both the Tottori Odan route and the Nakaumi loop are reliable stops for food, water, and rest.
Difficulty planning: Short loops around Misasa Onsen, Lake Shinji, and Yumigahama are approachable for casual riders in a single afternoon. The full Tottori Odan Cycling Route is best treated as a two-day ride for anyone not used to consistent 100-kilometer days, and the extended route through the Yamanami Kaido to the Shimanami Kaido is a serious multi-day tour requiring real distance fitness and advance logistics planning around lodging and rail shortcuts.
Final Thoughts
San’in is not trying to be Japan’s next crowded cycling destination, and that is exactly what makes it worth visiting now. The region offers geopark cliffs, sand dunes, castle towns, and hot springs strung along quiet coastal roads, backed by a growing and genuinely well-signed cycling network that is still, for the moment, mostly used by local riders. Whether you spend a single afternoon looping Lake Shinji or commit to the full coast-to-coast crossing of Tottori, San’in offers the kind of unhurried, uncrowded riding that has become increasingly hard to find elsewhere in Japan.
