Are you ready to pedal through one of the most jaw-dropping cycling routes on the planet? Meet the Shimanami Kaido — a stunning stretch of road that’s part scenic masterpiece, part cyclist’s paradise, and all-around bucket list-worthy. Whether you’re a die-hard bike enthusiast or just dipping a toe (or tire) into cycling in Japan, this route has likely popped up on your radar — and for good reason. It’s not just famous in Japan or Asia; it’s a world-class gem. 

Here at Grasshopper Adventures, we’ve been pedaling through Asia (and now Europe!) for over 20 years, and while we know you’re not supposed to pick favorites… well, let’s just say Japan makes it really hard not to. With its perfect mix of breathtaking landscapes, smooth cycling routes, and endless charm. 

Got questions? We’re always happy to chat. But first, read on and see why the Shimanami Kaido might just become your favorite too! 

What is the Shimanami Kaido?

The Shimanami Kaido is a 37 mi (60 km) road linking Japan’s main island, Honshu, with the charming island of Shikoku. (You might also hear it called the Nishiseto Expressway, but let’s face it — Shimanami Kaido sounds way cooler.) 

This route doesn’t just connect two islands; it dances across the Seto Inland Sea, hopping over six smaller islands via a series of long bridges. Think smooth dedicated cycle paths and endless views that’ll make you want to hit pause every five minutes for photos. It’s an easy-to-follow route that welcomes cyclists of all levels—and delivers scenery that’ll blow your socks (or cycling shoes) off. 

What Route Does the Shimanami Kaido Follow? 

The Shimanami Kaido kicks off in Onomichi City, Honshu, and winds its way south to Imabari City, Shikoku, with six stunning islands in between: Mukaishima, Innoshima, Ikuchijima, Omishima, Hakatajima, and Oshima. Each island has its own charm, so how much of it you explore is totally up to you — and your schedule. Got a weekend to spare? You’re golden. 

For those who like to keep things simple, just follow the iconic blue line painted right on the path. This handy guide takes you from JR Onomichi Station to JR Imabari Station, no detours required.  

Is the Infrastructure Set Up for Cyclists? 

Oh, absolutely — and then some! The Shimanami Kaido isn’t just a cycling route; it’s a love letter to cyclists. Opened in 1999, the bridges are sleek, modern, and purpose-built with dedicated cycle lanes that are completely separated from traffic. Translation? You can focus on those jaw-dropping views without a single worry about safety. 

The path is so well-maintained that it feels like it was rolled out yesterday — smooth, fresh, and totally ready for your two-wheeled adventure. It’s no wonder the Shimanami Kaido is hailed as a dream destination for cycling holidays in Japan. 

Along the route, over 150 local partners have teamed up to make your journey as comfortable as it is scenic. Think cozy guest houses, charming cafes, and retail shops all ready to welcome you with open arms (and maybe a hot cup of tea). You’re never too far from drinking water, local food, toilets, air pumps, bicycle stands, benches, and other conveniences. 

On the islands, ramps swoop you down from and up to the bridges like a rollercoaster made for cyclists — minus the screams, but with all the fun. They’re perfectly designed to keep you off the expressway and on the smooth, scenic trail. With gentle, go-at-your-own-pace inclines, they’re a breeze for anyone, whether you’re a Lycra-clad pro or just here for a chill cruise with epic views. 
Bottom line? The Shimanami Kaido is a cyclist’s playground — crafted for you to pedal, park, and pinch yourself because, yes, this ride is that good. 

How Long Does it Take to Cycle Shimanami Kaido?

The beauty of the Shimanami Kaido? You get to call the shots. Want to power through in a day? Go for it. Want to slow down, explore, and take in all the cool stops along the way? Even better. 

When following the most direct route from start to finish, it’s 70km (slightly longer than the expressway) on relatively gentle terrain. Experienced cyclists could knock it out in one day. But why rush? Take two days, and you’ll have time to explore the islands properly. Think hidden cafes serving local specialties, like fresh mikan (citrus fruit) and sea bream sushi, stop at charming temples, and snap a pic with friendly locals. 

Got the vacation itch but don’t want to sweat the small stuff? Well, lucky for you, our Japan: River Valleys & Heritage (Bike, Paddle) tour has your name written all over it. 

We take care of all the nitty-gritty so you can just focus on the fun. Imagine this: cycling the legendary Shimanami Kaido, paddling through peaceful river valleys, and soaking up Japan’s rich culture, all while sampling mouth-watering local bites.  

And the best part? You’ll have an overnight stop on Ikuchi Island, where you can kick back by the sea, feast on fresh seafood, soak in the hot baths, and let the island vibes take over. 

When is the Best Time to Cycle the Shimanami Kaido?

It’s pretty awesome year-round, but there are a couple of things to keep in mind. First off, steer clear of the peak summer heat (end of July and August), unless you’re into melting on your bike. Oh, and January? Not exactly cycling weather unless you're into frosty winds and freezing your gears off. 

The sweet spots? Spring (March to May) and autumn (September to November). These seasons bring mild temperatures, perfect skies, and beautiful scenery (think cherry blossoms or autumn leaves). 
And whatever time of year you go, don’t forget to pack these cycle touring essentials to make your adventure even smoother! 

Why Should I Cycle the Shimanami Kaido in a Guided Group?

Let’s paint the picture: you’ve got the expert Team Leaders at Grasshopper Adventures, who are bilingual and absolute legends when it comes to the history, culture, and geology of the area. They don’t just guide you — they bring the route to life with stories, quirky facts, and a ton of passion that’ll make you feel like you’ve been riding here for years. 

You’ll be surrounded by fellow travelers who are just as into active adventures as you are. These are people who live for the thrill of cycling, the joy of exploring, and the love of all things Japan. So, whether it’s swapping travel stories, bonding over scenic stops, or laughing through the miles, you’ll be in great company every pedal stroke of the way. 

And here’s the cherry on top — no need to worry about where to eat, sleep, or stop for a scenic view — everything’s been sorted for you. Just hop on your bike, enjoy the ride, and leave the rest to us. 

Cycle the Shimanami Kaido with Grasshopper Adventures! 

We hope this guide has fired up your excitement and given you all the details to kick off your next biking adventure. If you're looking to join the pros for an expert-led tour, dive into our Japan cycling tours and find your perfect match. 

Got questions? Want to chat? We’re just a message away! Whether it’s about our Japan tours or our epic rides across Asia and Europe, we’ve got you covered. Let’s make your cycling dreams come true!