Meibo Tunnel Vicinity, Hokkaido | Complete Guide to Autumn Foliage and Sea of Clouds Scenic Spots 2025
The area around Meibo Tunnel, located on Hokkaido Road 688 Nayoro-Enbetsu Line connecting Nayoro City in northern Hokkaido and Horokanai Town, is one of the finest autumn foliage viewing spots in the prefecture and is also known as a famous sea of clouds location. This article provides comprehensive information including the charm of Meibo Tunnel, access methods, best seasons, and nearby tourist attractions to help you make the most of your visit.
About Meibo Tunnel
Meibo Tunnel (めいぼトンネル) is a mountain tunnel on Hokkaido Road 688 Nayoro-Enbetsu Line connecting Nayoro City in Hokkaido and Moshiri (もしり) in Horokanai Town, Uryu District. It boasts a total length of 1,842 meters and is located at an elevation of approximately 592 meters.
The tunnel’s name is derived from combining “Mei” (名) from Nayoro City and “Bo” (母) from Moshiri, functioning as an important traffic route connecting both regions. Before the tunnel’s opening, travelers had to cross a steep mountain pass, and winter travel was extremely difficult. The tunnel’s completion has made year-round safe passage possible.
Tunnel Basic Information
- Official Name: Meibo Tunnel
- Reading: Meibo Tunnel
- Location: Mizuho, Nayoro City / Moshiri, Horokanai Town, Uryu District, Hokkaido
- Length: 1,842m
- Route: Hokkaido Road 688 Nayoro-Enbetsu Line
- Elevation: Approximately 592m
- Map Code: 272 728 598*62
- Latitude/Longitude: 44.37433063, 142.32064162
Charm of Autumn Foliage Around Meibo Tunnel
The area around Meibo Tunnel is one of Hokkaido’s representative autumn foliage viewing spots, attracting many tourists and photography enthusiasts each year. Due to its high elevation and cool climate, autumn foliage can be enjoyed relatively early compared to other parts of Hokkaido.
Best Season for Autumn Foliage
The autumn foliage around Meibo Tunnel typically reaches its peak from mid-October to late October. Because of the high elevation, foliage begins approximately one to two weeks earlier than in Nayoro city center.
- Color Change Begins: Late September to early October
- Peak Season: Mid-October to late October
- Leaf Fall: Late October to early November
The best viewing period varies depending on weather and temperature, so it’s recommended to check the latest foliage information before your visit.
Tree Species with Autumn Colors
Various tree species display their autumn colors around Meibo Tunnel.
- Maple Species: Turn vivid red, serving as the main attraction of autumn foliage
- Ginkgo: Golden-colored leaves gleam in autumn sunlight
- Nanakamado: Beautiful contrast between deep red leaves and red berries
- Birch: Elegant combination of white bark and yellow leaves
- Birch Species: Mountain-specific yellow foliage spreads across the landscape
The color gradient created by these tree species is truly like a natural work of art.
Points for Enjoying Autumn Foliage
Here are some tips to maximize your enjoyment of foliage around Meibo Tunnel.
Tunnel Entrance/Exit Areas: The areas around both the Nayoro-side and Horokanai-side exits are spectacular viewing points. The Horokanai side in particular offers an open landscape with views extending to distant mountains.
Early Morning Photography: Foliage illuminated by morning sunlight is exceptionally beautiful. On clear days, the low angle of the sun makes the foliage colors even more vivid.
Parking and Restrooms Available: Parking and restroom facilities are provided near the tunnel, allowing you to enjoy foliage viewing at your leisure.
Sea of Clouds Around Meibo Tunnel
Meibo Tunnel vicinity is known not only for autumn foliage but also as a famous sea of clouds location. Positioned on high ground overlooking the Nayoro Basin, you can enjoy a mystical sea of clouds when conditions are right.
Mechanism of Sea of Clouds Formation
Because Nayoro City is located in a basin, conditions are ideal for sea of clouds formation. The sea of clouds occurs when the following conditions align:
- Radiative Cooling: On clear, windless nights, surface heat dissipates through radiation, lowering air temperature
- Temperature Difference: Temperature difference develops between cold air in the basin and warm air aloft
- Humidity: Sufficient humidity exists, allowing fog to form
- Calm Wind: Light winds allow fog to remain stationary
When these conditions combine, fog forms within the basin, appearing as a sea of clouds when viewed from higher elevations.
Best Season for Sea of Clouds
The periods when sea of clouds can be observed around Meibo Tunnel are primarily:
- Spring: Late April to early June
- Autumn: Mid-September to early November
Autumn is particularly favorable due to increased radiative cooling, raising the frequency of sea of clouds formation. Coinciding with foliage season, you may have the opportunity to enjoy both sea of clouds and autumn foliage simultaneously.
Best Time for Sea of Clouds Viewing
Early morning visits are essential for sea of clouds observation.
- Time: Around sunrise (approximately 5:00 AM to 7:00 AM)
- Weather: Clear the previous day and clear early morning
- Temperature: Days with large diurnal temperature differences
- Wind: Calm or very light winds
The sea of clouds dissipates with morning temperature rise, so early arrival is crucial.
Sea of Clouds Viewing Precautions
Low Certainty: As a natural phenomenon, sea of clouds are not guaranteed. Luck plays a significant role.
Cold Weather Preparation: Mountain areas in the early morning are extremely cold. Even in autumn, temperatures can drop to near freezing, so prepare adequate cold-weather clothing.
Safe Driving: When fog is present, visibility decreases. Remember to adjust speed in and around the tunnel and keep headlights on.
Access Methods
Access to Meibo Tunnel vicinity is by personal vehicle or rental car. Public transportation does not directly reach the area, so plan your visit around driving.
Access from Nayoro City Center
From Nayoro city center to Meibo Tunnel, take Hokkaido Road 688 heading south.
- Distance: Approximately 20km
- Driving Time: Approximately 30 minutes
- Route: Nayoro City Center → Road 688 → Meibo Tunnel
Road 688 passes through mountainous terrain with many curves, and winter road surfaces require caution due to freezing.
Access from Horokanai Town
When visiting from Horokanai Town’s Moshiri area, Road 688 is also used.
- Distance: Approximately 15km from Lake Shumarainai
- Driving Time: Approximately 20 minutes
The Moshiri district is known as “Japan’s Coldest Place,” and Lake Shumarainai is one of Japan’s largest artificial lakes. It’s recommended to visit along with Meibo Tunnel.
Access from Major Cities
From Sapporo:
- Distance: Approximately 250km
- Driving Time: Approximately 3.5 to 4 hours
- Route: Sapporo → Doo-oh Expressway → Asahikawa → National Route 40 → Nayoro → Road 688
From Asahikawa:
- Distance: Approximately 80km
- Driving Time: Approximately 1.5 hours
- Route: Asahikawa → National Route 40 → Nayoro → Road 688
Parking Information
Parking spaces are provided around Meibo Tunnel.
- Parking Capacity: Approximately 10 spaces
- Fee: Free
- Restroom: Available
Peak autumn foliage season (mid-October weekends) may be crowded. Early morning or weekday visits are recommended.
Nearby Tourist Attractions
Here are nearby attractions worth visiting when you’re in the Meibo Tunnel area.
Lake Shumarainai (しゅまりないこ)
Located approximately 15km from Meibo Tunnel toward Horokanai Town, Lake Shumarainai is one of Japan’s largest artificial lakes by area.
- Features: A vast lake with a circumference of approximately 40km
- Activities: Canoeing, fishing, camping
- Autumn Foliage: Best viewed early to mid-October
The lakeside features walking paths and campgrounds where you can enjoy nature.
Moshiri District
Moshiri district in Horokanai Town is known as “Japan’s Coldest Place,” where the record low temperature of -41.2°C was recorded on February 17, 1978.
- Hokkaido University Uryuu Research Forest: Academically valuable primary forest
- Moshiri Crystal Park: Hot spring facility (may be closed currently)
Nayoro City Center
Nayoro city center, which serves as the base on the Nayoro side of Meibo Tunnel, offers the following attractions:
- Nayoro Municipal Planetarium “Kitasubaru”: Hokkaido’s largest telescope
- Nayoro Piyashiri Ski Area: Skiing in winter, summer toboggan in summer
- Sunpillar Park: Extensive park facility
Michi-no-Eki “Sticky Rice Village ☆ Nayoro”
A roadside station in Nayoro City where you can purchase local products and dine.
- Local Products: Sticky rice, asparagus, pumpkin
- Cuisine: Nayoro’s famous simmered jingisukan (mutton hotpot)
Important Precautions for Your Visit
Here are important precautions for safely enjoying Meibo Tunnel vicinity.
Weather and Clothing
Large Temperature Differences: Due to high elevation, temperatures are 5-10 degrees lower than city center. Prepare layerable clothing.
Sudden Weather Changes: Mountain areas can experience rapid weather changes. Carrying rain gear is recommended.
UV Protection: High elevation means stronger UV radiation, so bring sunscreen and a hat.
Driving Precautions
Many Curves: Road 688 is a mountain route with many sharp curves. Avoid excessive speed.
Wildlife: Wild animals such as sika deer and arctic foxes may dart into the road. Extra caution is needed early morning and evening.
Winter Driving: From November to April, snow and freezing are possible. Winter tires are essential and winter driving experience is required. Roads may be closed depending on conditions.
Items to Bring
- Drinking Water and Food: Few convenience stores or vending machines in the area
- Portable Toilet: While restrooms are available, carrying a portable toilet is reassuring
- Camera and Smartphone: For photographing scenic views
- Binoculars: Convenient for observing sea of clouds and distant scenery
- Map and GPS: Cell phone signal is weak in some areas
Photography Tips
Here are tips for taking beautiful photos around Meibo Tunnel.
Autumn Foliage Photography Tips
Light Direction: Front lighting (sun behind you) produces vivid colors, while backlighting creates translucent, mystical effects.
Composition: Frame foliage by using the tunnel entrance/exit as a frame.
Time of Day: Early morning and evening sunlight at a low angle make foliage appear three-dimensional.
Settings: Enhance vividness by slightly increasing saturation or using a polarizing filter.
Sea of Clouds Photography Tips
Tripod Use: Early morning darkness makes handholding difficult, so a tripod is recommended.
Exposure Compensation: Sea of clouds are bright white, causing cameras to underexpose. Apply +0.3 to +1.0 exposure compensation.
Include Foreground: Including foliage trees or rocks in the foreground creates depth in photos.
HDR Photography: With high contrast between sky and sea of clouds, HDR mode captures both beautifully.
Seasonal Enjoyment
Meibo Tunnel vicinity offers seasonal attractions throughout the year beyond foliage season.
Spring (April–June)
- Melting Snow and New Growth: Fresh green foliage is beautiful after snowmelt
- Sea of Clouds: Spring sea of clouds season
- Bird Watching: Many migratory birds visible
Summer (July–August)
- Escape the Heat: High elevation provides cool temperatures
- Stargazing: Clear starry skies with minimal light pollution
- Alpine Flowers: Wildflowers bloom on surrounding mountains
Autumn (September–November)
- Autumn Foliage: Main season (mid to late October)
- Sea of Clouds: Autumn sea of clouds season
- Clear Air: Distant mountains visible
Winter (December–March)
- Snow Scenery: Pure white landscape
- Rime Ice: Tree rime possible under right conditions
- Winter Closure: Road closure possible depending on snow conditions (confirmation required)
History of Meibo Tunnel Area
The opening of Meibo Tunnel greatly improved regional transportation.
Before Tunnel Opening
Before the tunnel, travelers had to cross steep mountain passes. Winters brought snow closure, making travel between Nayoro and Moshiri extremely difficult. Safe year-round passage was a long-standing regional wish.
Tunnel Construction
Meibo Tunnel was constructed as part of Road 688 development. The construction of this 1,842-meter-long tunnel represented a pinnacle of civil engineering technology at the time.
Effects After Opening
The tunnel’s opening brought:
- Year-Round Access: Safe winter passage now possible
- Travel Time Reduction: Significant savings compared to mountain pass routes
- Tourism Promotion: Increased tourists for foliage and sea of clouds viewing
- Regional Exchange: Enhanced interaction between Nayoro and Horokanai
Frequently Asked Questions (FAQ)
Q1: When is the best time to see autumn foliage around Meibo Tunnel?
A1: Typically mid-October to late October is peak season. Due to high elevation, foliage begins approximately one week earlier than Nayoro city center. Since timing varies with weather, check the latest foliage information before visiting.
Q2: Is the sea of clouds guaranteed?
A2: As a natural phenomenon, sea of clouds are not guaranteed. They appear when radiative cooling creates fog on clear, windless mornings. To increase your chances, visit in autumn early mornings (approximately 5:00 AM to 7:00 AM).
Q3: Can I access the area by public transportation?
A3: No public transportation directly accesses Meibo Tunnel vicinity. You’ll need to rent a car from Nayoro Station or use your own vehicle. Car rental companies operate near Nayoro Station.
Q4: Are parking and restrooms available?
A4: Parking (approximately 10 spaces) and restrooms are provided near the tunnel and are free. Peak foliage season weekends may be crowded, so early morning or weekday visits are recommended.
Q5: Can I travel here in winter?
A5: Winter (November–April) may bring road closures due to snow and freezing. Where open, winter tires are mandatory and winter driving experience is necessary. Always check road conditions before visiting.
Q6: Are there accommodations nearby?
A6: No accommodations exist near the tunnel. Several hotels and inns operate in Nayoro city center. Campgrounds are available around Lake Shumarainai (seasonal). If planning early morning sea of clouds or foliage photography, an overnight stay is recommended.
Q7: What’s the best time for photography?
A7: Early morning or evening when sunlight angles are favorable is best for foliage photography. For sea of clouds, sunrise time (approximately 5:00 AM to 7:00 AM) is optimal. Daytime sees more tourists, so early arrival suits quiet photography.
Q8: What should I do if I encounter wildlife?
A8: Sika deer and arctic foxes may appear. If encountered while driving, reduce speed and wait for the animal to leave the road. On foot, maintain distance without approaching, and never feed wildlife. If bear sightings are reported, avoid the area.
Conclusion
Meibo Tunnel vicinity is one of Hokkaido’s premier autumn foliage and sea of clouds destinations. The vivid foliage colors and mystical sea of clouds viewed from the 592-meter elevation are unforgettable sights.
During peak foliage season (mid to late October), maples, ginkgos, nanakamado, and other species paint the mountains with a stunning color gradient. Under the right conditions, early morning visits may reward you with sea of clouds, and with luck, both foliage and sea of clouds simultaneously.
Access by personal or rental vehicle takes approximately 30 minutes from Nayoro city center and approximately 1.5 hours from Asahikawa. With parking and restrooms available, you can savor nature at your leisure.
When visiting, remember that temperature differences are significant, so prepare cold-weather gear, practice safe mountain driving, and watch for wildlife. Meibo Tunnel vicinity promises unforgettable scenic experiences that will become treasured memories of your Hokkaido journey. Experience the seasonal beauty of nature firsthand.
