The park is situated on a plateau overlooking the Ariake Sea, providing a direct sightline to the mountains of Kyushu's mainland across the water.
The facility is specifically designed to maximize the use of its sloped topography, featuring a specialized grass-skiing slope.
Much of the park's structural design focuses on physical activity, with the long roller slide serving as the centerpiece of its recreational infrastructure.
The park serves as a community hub for the Kunimi district, which was formerly an independent town before merging into Unzen City.
Hyakkadai Park is a large-scale recreational facility located on the northern coast of the Shimabara Peninsula, known for its expansive grassy hills and panoramic views of the Ariake Sea. The park features a prominent 120-meter-long roller slide that serves as its primary attraction for families. The grounds occupy a former terraced agricultural landscape, utilizing the natural slope to provide elevated vantage points toward the Kumamoto Prefecture coastline. It contains specialized zones for grass skiing and a variety of playground equipment tailored to different age groups. The site is characterized by open green spaces and minimal forest coverage, emphasizing its utility as a communal play area rather than a traditional botanical garden.
The top of the grass-skiing slope, which offers an unobstructed panoramic view of the Ariake Sea and the surrounding coastal landscape.
Bring a piece of cardboard or a plastic sliding mat to protect your clothing and increase speed on the long roller slide.
The park offers limited natural shade, so sun protection is essential during the summer months.
Plan to visit on a clear day to take advantage of the unobstructed views of the Ariake Sea.
Avoid visiting during the peak heat of summer afternoons, as the open layout provides very little natural shelter from the sun.
Use the provided mats for slides to prevent friction burns and wear comfortable, athletic footwear suitable for grassy inclines.
