Kaso Hanasaki Park (Saitama Prefecture) Complete Guide | How to Enjoy the Four Seasons: Pool, Fishing, BBQ and More
“Kaso Hanasaki Park” (official name: Kisai Foods Hanasaki Fureaai Park, formerly: Kaso Hanasaki Water Park) located in Kaso City, Saitama Prefecture, is a comprehensive leisure park with vast grounds spanning approximately 24.9 hectares. Known as a popular spot for families, it offers diverse activities throughout the year, including a large summer pool facility, trout fishing, barbecue, cycling, and athletic challenges.
This article comprehensively covers the charm of Kaso Hanasaki Park, detailed facility information, access methods, fees, and seasonal activities—everything you should know before visiting.
What is Kaso Hanasaki Park? Overview and History of the Facility
Kaso Hanasaki Park is one of the prefectural parks developed by Saitama Prefecture and is managed and operated by the Saitama Parks and Greenery Association (a public interest incorporated foundation). Since April 2024, with the introduction of naming rights, the nickname “Kisai Foods Hanasaki Fureaai Park” has been used, though locally it remains beloved as “Kaso Hanasaki Water Park” and “Hanasaki Park.”
Basic Facility Data
- Location: 〒347-0022 Saitama Prefecture, Kaso City, Mizuki 1722
- Site Area: Approximately 24.9 hectares (equivalent to about 5 Tokyo Domes)
- Park Hours: Park areas open 24/7; paid facilities operate 10:00-17:00 (varies by season)
- Closed Days: Generally Mondays (following day if Monday is a holiday), New Year period (open daily during summer pool season)
- Phone Number: 0480-65-7155 (Reception hours 8:30-17:15)
- Fax: 0480-65-3749
The park consists of a water leisure area and a land-based leisure area featuring grassy fields and athletic challenges, providing diverse ways for visitors to enjoy themselves.
The Summer Highlight! Kaso Hanasaki Park Pool Facilities
The greatest attraction of Kaso Hanasaki Park is its large pool complex, which operates from early July to early September each year. With six types of pools, it offers fun for people of all ages, from young children to adults.
Types of Pools and Their Features
Sazanami Pool
Popular as a wave pool, it regularly creates waves that let you experience the feeling of ocean bathing. Designed with both shallow and deep areas, it can be enjoyed by small children and adults alike.
Flowing Water Pool
A pool with a course of approximately 300 meters where you float with the water current in a relaxing drift. Perfect for lounging on inflatable rings, it’s especially popular with families.
Multi-Purpose Pool
A full 25-meter professional pool suitable for various uses including swimming practice and water walking. During off-season, it can be used as a trout fishing area.
Slide Pool
A full-fledged water slide approximately 100 meters long. Thrilling and hugely popular with children. Height restrictions apply, so check before use.
Infant Pool
Shallow water design dedicated to small children, offering a safe environment. With clear sightlines for caregivers, it’s ideal for a child’s first pool experience.
Toddler Pool
Even shallower than the infant pool, designed for children ages 2-3. A perfect introduction to water play in a safe setting.
Pool Operating Information
- Operating Period: Typically early July to early September (varies by weather)
- Hours: 9:00-17:00 (final entry 16:00, last swim 16:30)
- Admission Fees:
- Adult (high school and above): ¥720
- Child (elementary and junior high school): ¥210
- Family passes and other discounts available
- Parking: 1,800 spaces (¥840 per day for regular vehicles)
The poolside features ample space for tents and parasols, plus shops and a dining hall for comfortable all-day stays.
Year-Round Fun! Trout Fishing and Boat Pond Area
Kaso Hanasaki Park offers various activities beyond the pool season, with trout fishing and boating being particularly popular.
Appeal of the Trout Fishing Area
During the off-season from winter to spring, part of the pool opens as a trout fishing area. Stocked primarily with rainbow trout and occasionally with large fish like Sakhalin sturgeon, it appeals to both experienced anglers and beginners.
Basic Trout Fishing Information
- Operating Period: October to approximately June (outside pool season)
- Fee: Around ¥2,000 with rod and bait included (catch is yours to take home)
- Facilities: Multi-purpose and Sazanami pools used as fishing areas
- Features: The rare fish “Sakhalin sturgeon” is sometimes stocked; expect to catch large specimens weighing 3-6 kg
The caught fish can be cooked on-site at the barbecue facility, making fishing and BBQ a popular combination for families.
Relaxing Water Walks on the Boat Pond
Boat rentals at the boat pond offer leisurely water walks while enjoying lush scenery. Time spent gazing at the green landscape provides a refreshing escape from daily routines.
- Fee: Around ¥500 for 30 minutes
- Operation: Primarily weekends and holidays (confirm for weekdays)
- Capacity: 2-4 people depending on boat type
Family-Friendly Barbecue Area
Kaso Hanasaki Park features well-equipped barbecue grounds where you can enjoy BBQ with minimal preparation.
Barbecue Facility Features
- Roofed Areas: Usable regardless of weather
- Tables and Chairs Provided: No need to bring your own
- Charcoal and Grill Rental: Available through advance reservation
- Water and Restrooms: Fully equipped for sanitary peace of mind
How to Use and Fees
- Reservations: Advance booking required (by phone or website)
- Fee: Around ¥2,000 per table (time-limited)
- Operating Hours: 10:00-16:00 (last reservation 15:00)
- Bring Your Own: Food and drinks can be brought in
Cooking fish caught from trout fishing right on the spot for a luxurious dining experience is possible, making the combined fishing and BBQ plan popular.
Kid-Friendly! Athletic Challenge and Play Equipment Area
Kaso Hanasaki Park features well-developed play areas where children can exercise and have fun.
Kobaton’s Labyrinth (Large Complex Play Equipment)
“Kobaton’s Labyrinth,” a large complex play structure renovated in May 2013 and named after Saitama Prefecture’s mascot character “Kobaton,” is a popular facility.
- Target Age: 3-12 years
- Equipment: Slides, net structures, suspension bridges, climbing walls, and more
- Feature: Multiple routes designed to spark adventure
- Safety: Uses soft ground material with high cushioning
Mini Athletic Challenge Area
Wooden athletic structures scattered throughout a natural setting allow children to exercise. With varying difficulty levels, courses challenge elementary school children through adults.
Bicycle Area
Enjoy cycling on a dedicated course using rental bicycles.
- Fee: Around ¥200 per hour
- Types: Bicycles with training wheels, tandem bikes, and more
- Age: 3 and up (height restrictions apply)
Enjoy Nature Through the Seasons: Grassy Fields and Walking Paths
Expansive Grassy Fields
Vast grassy fields comprising about half the park can be freely used for picnicking, ball games, kite flying, and more.
- Area: Approximately 10 hectares
- Features: Gently sloped with good visibility, ideal for children’s play
- Facilities: Rest house (covered shelter), numerous benches
- Use: Free and no reservation needed
Well-maintained grass allows barefoot play with safety. Spring cherry blossoms and autumn foliage let you feel seasonal changes while relaxing.
Ginkgo Tree Avenue and Autumn Foliage Spots
The park’s ginkgo tree avenue is particularly popular as a fall highlight. From mid to late November, trees turn a brilliant golden color, making it a popular photography destination.
- Peak Season: Mid to late November
- Location: Along main park pathways
- Feature: Approximately 200-meter tree-lined walkway
- Photography: Falling leaves create a beautiful carpet, perfect for Instagram-worthy shots
Walking Trails and Jogging Courses
Well-developed walking paths throughout the park are perfect for walking and jogging.
- Total Length: Approximately 2 kilometers
- Surface: Paved and easy to walk on
- Scenery: Seasonal flowers, ponds, and woodlands offer variety
- Users: Local residents use early morning hours for fitness
Seasonal Events and Activities
Kaso Hanasaki Park hosts various events year-round.
Spring (March-May)
Cherry Blossom Season
Late March to early April brings cherry blossoms throughout the park. Picnicking on the grassy field is popular with families relaxing on mats.
Flea Markets
Regular flea markets run from April through June, offering treasure hunting and community interaction.
Summer (June-August)
Pool Season Opens
Early July opens the pool, with families flocking during summer vacation. Heat stroke prevention features multiple rest areas and shaded spaces.
Autumn (September-November)
Ginkgo Tree Avenue Foliage
Mid-November brings brilliant ginkgo colors throughout the park, creating ideal conditions for walking and photo tours.
Trout Fishing Season Starts
October begins the fishing season, drawing enthusiasts.
Winter (December-February)
Triathlon Events
Triathlon events combining swimming, cycling, and running may be held, garnering sports attention.
Winter Fishing
Trout fishing continues even in cold months, offering winter fishing experiences. Large fish like Sakhalin sturgeon may be stocked.
Access: Getting There by Train or Car
By Train
Nearest Station: Tobu Isesaki Line “Hanasaki Station”
- Approximately 15 minutes on foot from Hanasaki Station South Exit (about 1.2 km)
- About 5 minutes by taxi from the station
- Rental bicycles available near the station (confirm availability)
Access Examples from the City Center
- About 1 hour via Tobu Skytree Line (Isesaki Line) from Asakusa Station
- Transfer at Kuki Station may be necessary in some cases
By Car
Via Highway
- About 10 minutes from “Kaso IC” on the Tohoku Expressway (about 5 km)
- Also accessible via Kenodo Expressway “Kuki-Shiraoka JCT”
Via Local Roads
- Accessible from National Route 125
- GPS: Set address to “1722 Mizuki, Kaso City, Saitama Prefecture” or phone “0480-65-7155”
Parking Information
- Capacity: Approximately 1,800 spaces
- Fee: ¥840 per day for regular vehicles (summer pool period); free or discounted other times
- Hours: 8:30-18:00 (varies by season)
- Congestion: Weekend and holiday mornings in summer often reach capacity; arrive early
Fee Structure and Discount Information
Park Entrance Fee
The park areas (grassy fields, walking paths, etc.) are free and open 24/7. Paid facilities are as follows:
Pool Fees (Summer)
- Standard Rates
- Adult (high school and above): ¥720
- Child (elementary and junior high school): ¥210
- Preschool: Free (with guardian)
- Family Pass: Approximately ¥2,000 for 2 adults and 2 children (confirm details)
- Discount Tickets: Discounted multi-visit passes available
Other Facility Fees
- Trout Fishing: Around ¥2,000 with rod and bait
- Boat Rental: Around ¥500 for 30 minutes
- Bicycle Rental: Around ¥200 per hour
- Barbecue: Around ¥2,000 per table
- Putting Golf: Around ¥300 per round (seasonal operation)
Discounts and Value Information
- Disability certificate holders and one caregiver receive discounts or free admission
- Group discounts available (20 or more, advance registration required)
- Free admission on Saitama Prefecture Day (November 14) for some facilities
- Annual passes may be available (check official website for details)
In-Park Facilities and Services
Dining Facilities
- Shops: Light meals, beverages, ice cream, etc.
- Dining Hall: Summer operation; curry, ramen, set meals, etc.
- Vending Machines: Located throughout the park
- Outside Food: Allowed on grassy fields and designated areas
Restrooms and Changing Rooms
- Restrooms: 4 locations throughout park; barrier-free options available
- Changing Rooms: Separate men’s and women’s facilities during pool season with lockers
- Showers: Warm showers available poolside
Additional Services
- Nursing Room: Located in the management office
- Stroller Rental: Free rental available in limited quantities (confirm)
- Wheelchair Rental: Free (limited quantity)
- AED: Located at management office, pool observation stations, etc.
- Wi-Fi: Available in some areas
Nearby Attractions to Visit
Several nearby attractions make good additions to your Kaso Hanasaki Park visit.
Sights in Kaso City
Koinobori Festival (May)
Kaso is known as “Koinobori Town,” and each May, about 1,000 koinobori (carp streamers) swim along the Tone River in a spectacular event.
Tamaski Shrine
Famous for its large wisteria trees over 400 years old. Peak bloom is late April to early May.
Kaso Future Hall
A cultural facility with planetarium and science exhibits. Ideal as a rainy-day alternative activity.
Nearby Roadside Stations and Gourmet
Michi-no-Eki Kitakawabe
Located north of Kaso City, this roadside station sells local vegetables and specialty products.
Kaso Udon
Hand-pulled udon is a Kaso specialty with many restaurants throughout the city serving chewy, flavorful noodles.
Important Notes and Etiquette
Packing Checklist
For Pool Use
- Swimsuit, towel, sandals
- Sunscreen, hat
- Floaties (air pump available on-site)
- Waterproof case for valuables
- Change of clothes, plastic bags
For BBQ and Picnicking
- Mat or simple tent
- Food, beverages, cooler
- Insect repellent
- Trash bags (take all trash home)
Prohibited Activities
- Pets (except guide dogs and service dogs)
- Open flames outside designated BBQ areas
- Bicycles and skateboards outside designated areas
- Drone flights
- Commercial photography (permit required)
For Safe Enjoyment
- Comprehensive heat stroke prevention in summer (frequent hydration, rest breaks)
- Follow lifeguard instructions at pools
- Never leave small children unattended
- Keep valuables secure and close
- Evacuate promptly if weather turns severe
Frequently Asked Questions
Q: Can I use the park in rainy weather?
A: Park areas remain open in rain, but paid facilities like pools and fishing may close in bad weather. Call ahead to confirm.
Q: Can I bring pets?
A: Pets are generally prohibited, though guide and service dogs are permitted.
Q: Can I bring food?
A: Picnic foods are allowed on grassy fields and designated areas. Take all trash home. Some restrictions may apply to pool areas.
Q: Do I need reservations?
A: Regular admission doesn’t require reservations, but barbecue facilities need advance booking. Group visits should contact ahead.
Q: Is the park wheelchair accessible?
A: Main pathways are paved for wheelchair use. Barrier-free restrooms are available. Complimentary wheelchair rental is provided (limited quantity).
Q: Can I walk from the nearest station?
A: Hanasaki Station is about 15 minutes on foot. With heavy luggage, consider a taxi.
Q: Does it operate in winter?
A: Park areas are open year-round. While pools close in winter, fishing and boats (weekends/holidays) operate. Closed Mondays (following day if Monday is holiday) and New Year period.
Conclusion: Enjoy a Full Day at Kaso Hanasaki Park
Kaso Hanasaki Park (Kisai Foods Hanasaki Fureaai Park), a premier comprehensive leisure facility in Kaso City, Saitama, offers endless attractions: six pool types in summer, year-round trout fishing and boating, expansive grassy fields, excellent athletic equipment, and barbecue facilities—truly too much to experience in one day.
Spring cherry blossoms, summer pools, autumn ginkgo trees, and winter fishing offer seasonal variety. With convenient access about one hour from central Tokyo, it’s ideal for weekend family outings.
Free park access allows casual visits for picnicking or walking. Reasonably priced paid facilities offer excellent value. Pre-visit research on seasons and events ensures optimal enjoyment.
Whether for family memories, outdoor activities with friends, or fitness walks, Kaso Hanasaki Park awaits. Check the Saitama Parks and Greenery Association website and Kaso City tourism site for the latest information. Pool operation times, fees, and fishing details may change; confirmation before visiting is recommended.
