Tsubaki Line (Shizuoka Prefecture)
Sometimes you just want a ride that feels intimate, personal; like it was made just for you. Not every ride needs to be some epic, heart-thumping, 100-kilometer stretch. Sometimes, a short, winding road through the hills, away from the crowds, is exactly what the soul needs. That’s the Tsubaki Line, a lovely road that threads its way through the quiet, green hills of Shizuoka Prefecture. It’s the kind of route you find once and think, “Yep! I’ll be back.”
This route connects Atami, an old-school onsen town on the coast, to Yugawara, another hot spring spot tucked into the mountains. It’s not long, but it has just the right mix of twists and turns, beautiful scenery, and those surprise views that make you want to pull over and soak it all in.
The Route
At about 15 kilometers, the Tsubaki Line is short, but it’s packed with enough variety to make every kilometer worth it. It’s an easy hop from the Izu Skyline if you want to make a day of exploring the peninsula. Just keep an eye on the weather. This road can get slippery if it’s been raining, and there’s enough shade from the trees to keep things damp longer than you might expect.
Spring and autumn are the best times to hit this route. In spring, you’ll get cherry blossoms popping up all over, and in autumn, the entire place is a riot of red and gold. Plus, it’s open year-round, so you can check it out whenever the itch for a ride hits.
Building up
Starting off in Atami, the Tsubaki Line doesn’t waste any time. You’re cruising through the town, dodging the morning traffic, maybe catching a glimpse of the sparkling ocean on the way out. Then, you hit the base of the hill, and things get a whole lot quieter.
The trees start to close in, and you feel the temperature drop as you start climbing. There’s a sweet mix of tight turns and short straights, just enough to really lean into those curves without feeling like you need to white knuckle it. This road is narrow in places, which adds to the sense of isolation. You get into this rhythm, dancing through the tree-lined tunnel, and it’s just you, the bike, and the wind whispering through the leaves.
Climax
Now, the Tsubaki Line doesn’t have that one big, sweeping vista moment. Instead, it offers up these little “wow” moments, where the trees part, and suddenly you’re looking out over Sagami Bay. On a clear day, the view stretches all the way across the water, and you can see tiny boats bobbing below. It’s the kind of view that makes you stop, take a breath, and just appreciate where you are.
These pockets of scenery sneak up on you. You’ll be navigating a tight curve, maybe a bit of sun sneaks through the trees, and then…bam! The coast opens up in front of you. And because this road doesn’t have the usual tourist traffic, you can actually take a moment to stop and enjoy it. There’s a laid-back vibe here that’s hard to find on some of the more popular routes.
The Descent
As the road starts to wind down toward Yugawara, things get a little gentler. You’ve already done the climb, so now it’s a matter of soaking in the green hills as you coast down the slope. There are a few spots where the trees open up, and you’re treated to these postcard perfect views of the valley below. The road here is smooth, and you get these long, lazy turns that are just pure riding bliss.
Eventually, you roll into Yugawara, where the smell of onsen steam and fresh seafood greets you. After all those twists and turns, the easy pace of this little town feels just right. Find a small cafe, grab a drink, and let the day wind down as you savor the memories of the road.
Highlights & What to Expect
- Coastal Views, Forest Vibes:
You get the best of both worlds here, with shady tree canopies, rolling hills, and those sweet glimpses of the ocean that remind you how close you are to the coast.
- Twists and Turns:
This road is tight in spots and keeps you on your toes, but it’s not overly technical. It’s perfect for riders who want a bit of a challenge without feeling like they need to be experts to enjoy it.
- Seasonal Scenery:
Cherry blossoms in spring, blazing foliage in autumn—this route shows off in every season. Even in winter, the starkness of the bare trees against the hills has a charm of its own.
Food Stops
If you’re starting in Atami, grab a quick bite at one of the seaside stalls, they’ve got everything from steamed buns to tempura. Nothing beats a fresh snack by the ocean before heading into the hills.
Once you’re in Yugawara, there are some killer little places to check out. Fukuzumi Soba is a top pick, with fresh, handmade noodles in a peaceful garden setting. For a sweet treat, Miyagekan in Yugawara has some fantastic traditional Japanese sweets, perfect for refueling before you hit the road again.
Verdict
The Tsubaki Line is the kind of ride that doesn’t try too hard, and that’s exactly what makes it so special. It’s short but sweet, challenging but not intimidating, and has just enough scenery to keep you coming back. It’s the kind of road that feels like your own little secret: somewhere you can escape for an hour or two and just enjoy the ride.
Score (out of 5)
Stylish Rank: Chill!
Scenery: 4.5
Technicality: 4
Road Quality 4
Challenge: 3.5
Accessibility and Traffic: 4
Connecting /Nearby Routes
To extend the journey, here are three additional scenic routes nearby that connect well with the Tsubaki Line for a complete experience of the Izu Peninsula.
Izu Skyline (Route 20)
The classic Izu Skyline. This 40-kilometer route is designed for motorcyclists and drivers who love smooth curves and wide-open mountain views.
- Location: Begins near Atami and continues south along the eastern ridge of the Izu Peninsula.
- Search Terms: "Izu Skyline Route 20" or 伊豆スカイライン 国道20号
- Route Number: Prefectural Route 20
- Tip: Stop at the Amagi Pass for breathtaking views of Mount Fuji on clear days.
2. Hakone Skyline (箱根スカイライン)
The Hakone Skyline is a short but beautiful toll road that connects with the Tsubaki Line near Lake Ashi.
- Location: Located near National Route 1, running parallel to Lake Ashi.
- Search Terms: "Hakone Skyline" or 箱根スカイライン
- Route Number: Not numbered; it’s a local toll road that connects with other scenic roads in Hakone.
- Tip: Take a break at Daikanzan Observation Point for some of the best views of Mount Fuji and Lake Ashi.
3. Atami Beach Line (Route 135)
The Atami Beach Line runs along the coast between Atami and Ito, offering views of the Pacific Ocean, sandy beaches, and coastal villages.
- Location: Runs along the eastern coast of the Izu Peninsula, connecting Atami and Ito.
- Search Terms: "Atami Beach Line Route 135" or 熱海ビーチライン 国道135号
- Route Number: National Route 135
- Tip: Stop at Ajiro Harbor to watch local fishing boats and enjoy fresh seafood.
Planning Your Own Japan Motorbike Tour?
If you're planning your own motorbike tour through Japan, renting a bike is a great option. Our friends at Rental819 are a fantastic choice for foreign riders—they offer a wide selection of well-maintained bikes at reasonable prices, with locations all across Japan. They're also known for being very foreigner-friendly, making the process easy even if your Japanese isn't perfect.
Whether you're after a quick weekend trip or a full-blown tour, Rental819 has got you covered. And if you need any tips or advice along the way, feel free to reach out! At Shogun Motorbike Adventures, we're always happy to help fellow riders experience the incredible roads and rich culture that Japan has to offer.
Experience This Route On A Shogun Motorbike Adventure:
Our Fuji Explorer Tour, with 7-day and 10-day options both running in May and October 2025 and 2026, will dip in and out of the Tsubaki Line, linking up with other iconic routes including the Izu Skyline. Check it out and book your adventure today!
As well as the Fuji Explorer Tour, in 2026 we will be running the Volcanic Voyage Tour, Mountain Strider Tour and Wilderness Expedition Tour. These are brand new tours that you can read up about and register interest for right now.
