Detailed Guide to Renting a Car and Driving Along the National Highways of Japan's West Coast

A car rental trip along the Sea of Japan (West Coast) of Honshu, Japan—starting from Yonago in Tottori Prefecture and heading all the way up to the northernmost point of Aomori—is the ultimate journey. Escaping the concrete jungles of major cities, you will encounter Japan's raw, untouched nature, tranquil fishing villages, and local cultures steeped in deep history. While expressways offer speed, they often bypass the ocean views. By organically combining national and local roads, the true charm of this West Coast route finally reveals itself.

Here is a complete drive guide to your West Coast journey from Yonago to Aomori, detailing core national highway routes, section distances, top tourist attractions, regional specialty foods, and legendary hot springs (onsen) to wash away your travel fatigue.

1. Detailed Guide to Core National and Local Highway Routes for Crossing the West Coast

When heading north along Japan's West Coast, three main national highways (Routes 9, 8, and 7) along with key auxiliary local roads form the backbone of your driving experience:

• National Route 9 (Connecting Section: Yonago ~ Northern Kyoto / Fukui Region)
  
  
  • Section & Distance: Yonago City ~ Tottori City ~ Northern Hyogo Prefecture ~ Northern Kyoto (Tango Peninsula) and the Fukui Prefecture border area (approx. 250 km)
    
    
  • Driving Characteristics: This route winds closely along the coastline and rolling hills of the Sanin region. Running right beside the sea, it frequently dips into quaint, cozy fishing villages. Traffic flows at a relaxed pace with occasional traffic lights.
    
    
• National Route 8 (Hokuriku Region Main Artery)
  
  
  • Section & Distance: Fukui/Ishikawa Prefecture Border ~ Kanazawa ~ Toyama ~ Niigata City (approx. 350 km)
    
    
  • Driving Characteristics: This is the most comfortable and well-infrastructure-backed driving section among Japan's West Coast national highways. Many segments are expanded to four lanes, ensuring smooth travel between major cities.
    
    
  • Special Local Road Connection: When passing through the Ishikawa Prefecture coast, if you momentarily detour off the national highway onto the "Chirihama Nagisa Driveway," you can experience the rare thrill of driving your car directly across hard-packed sand right on the seashore.
    
    
• National Route 7 (Northern Longitudinal Main Artery: Niigata ~ Aomori)
  
  
  • Section & Distance: Niigata City ~ Yamagata Prefecture (Tsuruoka/Sakata) ~ Akita Prefecture ~ Aomori City (approx. 600 km)
    
    
  • Driving Characteristics: Serving as the main trunk line piercing straight through the northern West Coast from Niigata to Aomori. While the Shonai Plain area features refreshing straightaways, nearing the Akita-Aomori border (such as the Sasasaki Coast) introduces rugged rock coasts, cliff-carved coastal roads, and alternating tunnels.
    
    

2. From Yonago to Aomori: Major Tourist Attractions, Specialty Foods, and Onsen Guide

① Sanin & Hokuriku Entry Section (Yonago ~ Kanazawa & Toyama)

• Major Tourist Attractions:
  
  
  • Shirakawa-go and Gokayama (Gifu/Toyama Border): A UNESCO World Heritage village of traditional gassho-zukuri farmhouses. Easily accessible via a brief inland detour from National Route 8.
    
    
  • Kanazawa's Higashi Chaya District & Kenrokuen Garden: Explore a preserved Edo-period geisha tea house district and Kenrokuen, one of Japan's top three landscape gardens.
    
    
• Specialty Foods:
  
  
  • Hida Beef Dishes & Hokuriku Seafood Rice Bowls (Kaisen-don): Gorgeous culinary gems featuring fresh East Coast shrimp, crab, and yellowtail.
    
    
• Recommended Onsen:
  
  
  • Wakura Onsen (Nanao City, Ishikawa Prefecture): A historic 1,200-year-old hot spring resort right beside the sea, offering breathtaking ocean views from its open-air baths.
    
    

② Hokuriku ~ Niigata & Shonai Region (Toyama/Niigata ~ Sakata, Yamagata)

• Major Tourist Attractions:
  
  
  • Sado Island Ferry Port (Niigata Port): Time permitting, take a ferry from Niigata Port to experience Sado Island's unique tub boats (tarai-bune).
    
    
  • Kamo Aquarium (Tsuruoka City, Yamagata Prefecture): A world-renowned seaside aquarium famous for its spectacular jellyfish exhibits, conveniently located right along National Route 7.
    
    
• Specialty Foods:
  
  
  • Niigata Rice and Sake (Nihonshu): Koshihikari rice grown from pristine melted snow water, paired with local brewery sakes.
    
    
  • Sakata Ramen: A clean, deeply savory local ramen featuring a flying fish (tobiuo) broth base.
    
    
• Recommended Onsen:
  
  
  • Atsumi Onsen (Tsuruoka City, Yamagata Prefecture): A cozy hot spring village nestled near National Route 7, perfectly positioned to soothe your fatigue while looking out toward the sea.
    
    

③ Tohoku Northern Sea of Japan ~ Aomori Final Section (Akita ~ Aomori)

• Major Tourist Attractions:
  
  
  • Oga Peninsula (Akita Prefecture): Rugged coastlines steeped in the legend of Namahage (traditional folkloric visitor demons) and the striking vistas of Cape Jinsan.
    
    
  • Juniko (Twelve Lakes) & Shirakami-Sanchi (Aomori/Akita Border): A UNESCO World Natural Heritage site featuring primitive beech forests and mystical emerald-blue lakes, easily accessed by driving along National Route 101 (West Coast Longitudinal Road).
    
    
• Specialty Foods:
  
  
  • Inaniwa Udon (Akita): Thin, smooth, handmade dried udon noodles recognized as one of Japan's top three udon varieties.
    
    
  • Aomori Apple Pastries & Scallop Miso Grill (Hotate-Miso-Yaki): Sweet local apple desserts and traditional regional grilled scallops.
    
    
• Recommended Onsen:
  
  
  • Fugasaiura Onsen (Fukaura Town, Aomori Prefecture): A legendary open-air bath (Hiba Tengen Rotenburo) carved directly into the coastal rocks right where the Sea of Japan waves crash, allowing you to watch a stunning sunset seemingly at one with the ocean.
    
    

3. Practical Driving Tips for a Successful West Coast National Road Trip

1. Make the Most of "Michi-no-Eki" (Roadside Stations): Driving along national and local roads will frequently bring you across "Michi-no-Eki" rest stops, which sell local agricultural/seafood products and affordable local bites (soba, seafood bowls). They are far more vibrant and cost-effective than expressway service areas.
   
   
2. Check Gas Station (GS) Timing in Advance: Unlike major cities, the national highway segments in northern Akita Prefecture and the Aomori West Coast (around Fukaura) have sparse gas station spacing. Once your fuel gauge drops below half, top up proactively without delay.
   
   
3. Navigation Setting Tips: When using car navigation systems or map apps (Google Maps, NAVITIME, etc.), set them to "General Roads Priority" (一般優先) or "Free Roads Priority" instead of "Expressway Priority." This will guide you through a cost-efficient, highly scenic West Coast touring route running parallel to the sea.