Sanuki Manno Park is an easy nature break from Kotohira. As Shikoku’s only national government park, it pairs broad lawns with seasonal flower fields and a gentle 6 km cycling loop beside Manno Lake. It’s close, clearly signed, and fits perfectly after a focused morning at Kotori hostel and coworking. Visit in spring or autumn for peak color, or in late autumn for the Winter Fantasy lights.
Table of Contents
- Presentation of Sanuki Manno Park
- Visiting Sanuki Manno Park
- How to go from Kotohira
- Practical informations
- Conclusion
- FAQ
Presentation of Sanuki Manno Park
Sanuki Manno Park sits in Mannō about 15 kilometers south of Kotohira beside Manno Lake. As Shikoku’s only national government park, it spans about 350 hectares (3.5 square kilometers). Development was phased: the first section opened on April 18, 1998, and full opening followed on April 21, 2013.
The grounds are organized into the Central Plaza near the main gate, Recreation and Health areas with signed walking routes and a flat 6 km cycling course with rentals from the Cycling Center, and the forested Sanuki Forest zone that completed the plan.
Sanuki Manno Park through the year
Spring
Daffodils, tulips, and nemophila bloom in sequence across large beds and slopes. Cherry blossoms also appear in spots. The park runs spring flower events such as Haru Ranman Festa.
Summer
Hydrangeas and sunflowers take over, with family programs like Summer Festa and water play areas active during school holidays. Fluffy lime-green kochia begins growing across the hillsides.
Autumn
Kochia turns vivid red and wide cosmos fields reach their peak, including yellow cosmos in some displays. The park hosts seasonal flower fairs and weekend activities.
Winter
From late November into January the park runs Winter Fantasy, a night-time illumination. Large areas around the Central Plaza and hillside gardens become themed light displays that change each year, with dedicated photo spots and occasional weekend performances or food stalls.
Year-round programming
Beyond flowers, the park calendar features rotating fairs, workshops, and family events tied to each season. Check the official event schedule when planning.
Manno Lake sits directly beside the park. It is Japan’s largest historic irrigation reservoir, with a shoreline of roughly 20 kilometers. The park’s lakeside paths and viewpoints face the water, and local roads around the reservoir provide easy access to lookouts and short walks.
Visiting Sanuki Manno Park
Sanuki Manno Park is a nice place to visit for a half day trip from Kotohira. There are several entrances, but if you are short on time the Main Entrance by the Central Plaza is the best starting point. Pick up the park map, check the flower calendar, and choose walking or cycling routes from here.
Central Plaza and Main Garden Area
The best way to appreciate Sanuki Manno Park on a sunny morning or afternoon is to begin at the Central Plaza by the Central Information Center. From here you step straight into broad garden blocks and lawns that shift with the season: daffodils and cherry blossoms leading into tulips and nemophila in spring, hydrangeas in early summer, and sunflower plantings in midsummer, followed by red kochia and swaths of cosmos in autumn.
Facilities cluster here, including restrooms, vending machines, shaded seating, the Visitor Center, and a restaurant and souvenir shop, so it’s an easy base for a stroll or picnic. Plan roughly 45 to 90 minutes for an unhurried loop, longer if you stop for photos.
Before you leave this zone, check the posted timetable for the Shoryu Waterfall, a large stepped cascade that operates at set times; it sits in the Ryuzu Village area and makes a good add-on from the plaza.
Lakeside viewpoints from Manno Park
From the Central Plaza, follow the wayfinding panels toward the water. This path leaves the main gardens and quickly reaches two signed overlooks right next to the central area: the Panorama Viewing Deck and the Observation Deck with a view of Manno Pond.
Keep following the same panels if you want to continue on foot to the lakeside road for wider reservoir views, or pick up the markers for the flat 6 km Cycling Course at the edge of the gardens and ride out before looping back to the plaza. Late afternoon light works well here on clear days.
Ryuzu Hill
Ryuzu Hill is reached from the south side of the park and has its own convenient parking near the North Parking Area and the Ryuzu Woods entrances. Short forest paths lead to open viewpoints, and in autumn the kochia here turns a vivid red with nearby cosmos beds in bloom. Wayfinding is clear and benches are dotted along the trails. Budget 30 to 60 minutes for an easy circuit.
Natural Ecological Garden
It’s a 15 minute walk from the Central Plaza to the Natural Ecological Garden entrance. You’ll find small buildings here used for activities and occasional exhibitions, including the Study Room and Natural Ecological Exhibition Hall. Paths start at this gateway and split in several directions. Most drop gently at first, then take you deeper into a quiet, enclosed pocket of woodland with small lakes, reed beds, and wetlands. It’s peaceful, mostly level, and clearly signed, so you can wander at an easy pace. If you’re short on time, you can also park directly at this section.
Sanuki Woods
Sanuki Woods is a separate, forested zone with its own trailheads and a quieter feel than the garden core. You’ll reach the entrance by following the signed internal road or the Cycling Course from Central Plaza. At the gateway there’s a simple trail map and spots to pause before you head in. Paths split soon after and wind through mixed woodland with steady shade, birdsong, and a few clearings that frame the surrounding hills. Most routes are gently graded with short rises, so it’s easy to keep an unhurried pace even on warm days. Plan 30 to 60 minutes for a relaxed circuit, longer if you link a loop to nearby viewpoint trails. If you’re driving, there’s signed parking for Sanuki Woods so you can start directly from this area.
Short viewpoint walks in Manno Park
Sanuki Manno Park has several quick climbs and lookouts that fit a half day plan. From Central Plaza, follow the viewpoint icons to Miharashi Hill, Kibou Hill, the Panorama Viewing Deck, or the Observation Deck with a view of Manno Pond. Trailheads branch from the main garden paths and from the Ryuzu side if you’ve parked there. Paths are firm and well kept with gentle grades and a few short stair sections near the tops, so regular shoes are fine.
It’s a short push to each viewpoint. You’ll usually reach a hill summit in 10 to 20 minutes, while the two decks sit a little closer to the garden core. Plan 25 to 45 minutes round trip for a hill, or 15 to 30 minutes for a deck, including time for photos. Benches are set near most viewpoints and sightlines take in patterned flower beds, the surrounding ridges, and on clear days glimpses of Manno Lake. Use the posted map at Central Plaza to link one or two viewpoints with your preferred garden loop so the route flows without backtracking.
Enjoy a walk around Manno Lake : all you need to know
How to go to Manno Park from Kotohira
By bus
Using buses is possible but not the easiest way to reach Sanuki Manno Park. From JR Kotohira Station or Kotoden Kotohira Station, take the Kotohira Bus Miai Line and get off at Manno-Koen-guchi. From there, it’s about a 30 minute walk to the main gardens, and service is infrequent, so check the timetable before you set out.
By car
Door to gate takes about 15 minutes from central Kotohira. Parking lots sit at each zone. You’ll pay a parking fee at the tollgate on entry, per vehicle: normal car 320 yen, large vehicle 1,050 yen, motorcycle 100 yen. Note parking is cash only.
Rent a car directly from Kotori Coworking & Hostel! Ask Kotori staff.
Manno Park By bicycle
It’s roughly 15 kilometers on quiet rural roads. Most riders need 60 to 90 minutes each way. Bike parking is signed inside the park. If you enter by bicycle, you’ll also pay at the parking tollgate (but nothing for your bicycle). Then pick up the flat 6 km Cycling Course for a relaxed loop.
Rent you bike or E-bike from Kotori Coworking & Hostel Kotohira.
Practical informations about Manno Park
Admission
Adults 15+ ¥450. Pay at the gate.
Opening hours
March 1 to July 19: 9:30–17:00
July 20 to August 31: 9:30–18:00
September 1 to October 31: 9:30–17:00
November 1 to end of February: 9:30–16:30.
Regular closures
Tuesdays, December 29–31, and the fourth Wednesday to Friday of January. During March 20–May 31, July 20–August 31, and September 11–October 31 the park opens daily.
Parking
Pay at the tollgate per vehicle: car ¥320, large vehicle ¥1,050, motorcycle ¥100. Bring small cash.
Bike rental
Standard bikes: ¥400 for 2 hours, then ¥150 per 30 minutes.
E-bikes: ¥700 for 2 hours, then ¥250 per 30 minutes. Rentals are by the Cycling Center near Shoryu Waterfall.
Winter Fantasy illumination
Runs on scheduled evenings from late November to around mid January. Typical evening hours are 17:00–21:00.
Conclusion
Sanuki Manno Park is the kind of place where a simple walk resets your day. Paths stay gentle, flowers and colors change with the season, and quiet corners appear whenever you stray from the main beds. It’s easy to stitch together a calm two hour break between work sessions in Kotohira, or let curiosity pull you into a full day by adding Ryuzu Hill, Sanuki Woods, the Natural Ecological Garden, and the viewpoints over Manno Lake. Either way, it feels like time well spent outdoors.
Find more things to do in and around Kotohira. Explore the best of Kagawa prefecture.
FAQ to visit Manno Park
How long should I plan for a visit?
A relaxed circuit of the central gardens takes 45 to 90 minutes. Add at least 30 to 60 minutes each for Sanuki Woods or the Natural Ecological Garden.
Is there a cycling course?
Yes. The in-park Cycling Course is 6 km, flat, and signed. Rentals are available at the Cycling Center. You can also rent a bike or E-bike from Kotori.
Are there parking fees?
Yes. You pay at the tollgate per vehicle when entering the park’s parking areas.
Can I reach the lakeside on foot?
Yes. Follow signs from Central Plaza to the Panorama Viewing Deck or the Observation Deck with a view of Manno Pond.
Where do I start if I’m short on time?
Use Central Parking and begin at Central Plaza. It puts you next to the largest gardens and the main wayfinding boards.
Can I picnic?
Yes. Lawns around the central gardens have space for picnics. Follow posted rules and sort waste at marked bins.
What’s the easiest way to go from Kotohira?
By car. It’s about 15 minutes each way, and you can rent through Kotori hostel & Coworking for simple pickup before you head out.
About the author
Manon, is a digital nomad and content creator. She lives between time zones, works between getaways, and shares the beauty of this joyful mess.