At Sakai Green Museum Harvest Hill, an agricultural experience park in Minami Ward, Sakai City, Osaka Prefecture, the popular summer spot Splash Plaza is bustling with visitors.
The approximately 1,800 square meter plaza includes areas like the Mushroom Zone and the Windmill Zone, where both kids and adults have a blast playing in the water shooting up from the fountains.
Since July 18, the Windmill Zone has been hosting Duck Flood, an event where more than 3,500 rubber ducks float across the water. The bright yellow ducks blanketing the surface make for an irresistible photo opportunity.
In August, the park will also open two hours earlier than usual, at 8:00 AM. Splash Plaza will open one hour earlier too, starting at 9:00 AM.
Splash Plaza
Dates: April 25 (Sat) to September 23 (Wed/Holiday), 2026, 10:00 AM to 3:00 PM (last entry 2:30 PM)
*In August: 9:00 AM to 4:00 PM (last entry 3:30 PM)
Admission: Included with Harvest Hill entrance fee
Location: Pamphlet No. 45, Splash Plaza
Website: https://farm.or.jp/event/12485
*Cancelled in case of rain
Duck Flood
Dates: July 18 (Sat) to September 23 (Wed/Holiday), 2026, during Splash Plaza operating hours
Quantity: Over 3,500 ducks
*Rubber ducks cannot be taken home
Other Summer Events
8 AM Opening in August
In the height of summer, the park will open at 8:00 AM in August so visitors can start enjoying the cooler morning hours. Guests can view the sunflower fields at their peak bloom, or head to Splash Plaza and the play equipment, both open earlier than usual.
Period: August 1 (Sat) to 31 (Mon), 2026
Website: https://farm.or.jp/event/15634
70,000 Sunflowers
Two flower fields hold a total of 70,000 sunflowers standing tall toward the sun. During peak bloom, visitors can walk into the fields for photos surrounded by sunflowers. In August, the fields can be viewed starting at 8:00 AM.
A separate flower field also has multi-branching sunflowers in bloom.
Bloom: 1) Late July to mid-August expected (peak expected early August); 2) Mid to late August expected (peak expected mid-August onward), 2026
Website: https://farm.or.jp/event/13900
Summer Festival
Food trucks, carnival game stalls, Bon Odori dancing, and a mini fireworks show fill the evening with lively entertainment. The night wraps up with about five minutes of fireworks, lighting up the night sky over Harvest Hill up close, set to music.
Dates: August 13 (Thu) to 16 (Sun), and September 20 (Sun) to 23 (Wed/Holiday), 2026. Mini fireworks show starts at 8:00 PM
*Postponed in case of rain
Website: https://farm.or.jp/event/13960
Drenched! Survival Battle
In Water Battle, teams compete with water guns in a match that's sure to leave everyone soaked. Players work together with teammates, aiming to hit the opposing team's poi paper targets.
Dates: Tuesdays, Thursdays, Saturdays, Sundays, and holidays in August 2026, plus August 14 (Fri). Excludes August 8 (Sat) and 9 (Sun)
Times: 1) 9:00 AM; 2) 10:00 AM; 3) 11:00 AM
Website: https://farm.or.jp/event/15520
Capybara & Goat Watermelon Party
As a heatstroke countermeasure for the capybaras and goats, they're treated to watermelon, which is both hydrating and one of their favorite foods. Visitors can watch them munch away happily, and the strength of their teeth and jaws often draws surprised reactions as they eat straight through the rind.
Dates: August 1 (Sat) and 15 (Sat), 2026
*Cancelled in case of rain
Website: https://farm.or.jp/event/13974
Summer Snow Hill
Feel like winter in the middle of summer! This special event lets visitors enjoy cool, refreshing snow play during the hot season. Both kids and adults have a blast in the falling and piled-up snow.
Dates: August 8 (Sat) and 9 (Sun), 2026. Piled snow from 8:00 AM; falling snow from 10:00 AM for about 30 minutes, until the snow melts
*Cancelled in case of rain
Website: https://farm.or.jp/event/13962
About Harvest Hill
Sakai Green Museum Harvest Hill is an agricultural experience park in Minami Ward, Sakai City, Osaka Prefecture. The 350,000 square meter grounds are divided by a suspension bridge into the Town Area and the Village Area, and feature seasonal flower fields in full bloom, a 36-meter-tall Ferris wheel, slides, go-karts and other rides, feeding and interacting with animals such as sheep and capybaras, hands-on cooking, craft, and pottery classes, and Sylvanian Park, an outdoor theme park recreating Sylvanian Village. There's enough to enjoy for a full day.
Facility Name: Sakai Green Museum Harvest Hill
Location: 2405-1 Hachigamine-dera, Minami Ward, Sakai City, Osaka 590-0125
Phone: 072-296-9911
Hours: 10:00 AM to 5:00 PM (last entry 4:00 PM)
August only: 8:00 AM to 5:00 PM (last entry 4:00 PM) *Closes at 8:30 PM on Summer Festival days
Closed: July - Wednesdays
August - 5th (Wed), 19th (Wed), 26th (Wed)
September - 2nd (Wed), 9th (Wed), 16th (Wed), 30th (Wed)
Admission: Adults (junior high school age and up) ¥1,500
Children (ages 4+) ¥1,000
Dogs ¥600
*Free for ages 3 and under
*Dogs require proof of rabies vaccination and 5-in-1 (or higher) combination vaccination within the past year
Parking: Approximately 1,800 spaces (free) *Large buses accepted
Access: [By Car] From the Hanwa Expressway "Sakai IC," take Prefectural Route 61 (Senboku Route 2) south for about 15 minutes. Turn left at the "Harvest Hill-mae" intersection, and the parking lot is about 2 minutes ahead.
[By Train/Bus] From platform 6 of the bus terminal at Nankai Semboku Line "Izumigaoka Station," take the Nankai bus bound for "Harvest Hill" for about 20 minutes, then walk 2 minutes from the bus stop.
Operator: Sakai Farm Co., Ltd.
Official Website: https://farm.or.jp/
*Some images shown may have been taken on a previous date.
