Operated by Manda Fermentation, the park is divided into the HAKKO Gate, lined with cafes and shops; the HAKKO Garden, a vast expanse of flowers and greenery; and the guided tour area of the factory and hall. Learn, play, and relax all in one place with a wooden deck overlooking the Seto Inland Sea, a foot bath, a kids' play area, and a summer paddling pool. Admission is free, so feel free to drop by.

There are numerous facilities, exhibits, and hands-on programs to learn about fermentation.

The expansive grounds include a lush garden and an area where you can admire plants grown with Manda Fermentation Enzyme.

The shop offers unique Innoshima souvenirs, including Manda Fermentation Enzyme, plant supplies, and fermented cosmetics. The cafe offers light meals and drinks while overlooking the park.

[Trivia]
The "Jumbo Sunflowers" that bloom every summer are a local specialty. In 2025, a record-breaking 6.74 meters were recorded.

The park also offers a variety of free areas, including the "Peace & Smile" goats, the Root Museum, and the foot bath.