This Park is located at the scenic Rias coast, in beautiful Ubarachisaki of Katsuura City. In the central part, there is the largest undersea observation tower in the East. You can see many fish, each season, and the mystery of the sea at the junction of cold and warm currents.
In the river basin on the Pacific sea side of Boso Peninsula, shell mounds and round wooden boats from the Jomon period (16,000 years ago – 3,000 years ago), were excavated.
Unlike on the ground, the undersea has not changed from 5000 years ago.

This museum exhibits the head of a female Clay figure with Yuiage, her hair tied up. The pitcher has been colored with a red pigment, has a liquid spout, and indigo lacquerware. Dish-like objects contain a red lacquered pattern, were knitted with bamboo, bark, etc., and pasted with linen. Creating life with the dynamics of nature. The lacquer culture and the wisdom of the Jomon people will surprise you.

This center utilized an old Otaru warehouse, designated as a historic building. This building is representative of the existing timber-framed stone warehouses in Japan. In the exhibition room, lacquered combs, earthenware, stoneware, etc., excavated from the Oshorodoba ruins, a meadow site in the late Jomon period, 3,500 years ago, are displayed. Otaru is a place where the culture of post Jomon ( 3rd century BC – 7th century) and the southward northern culture, overlapped.

“All things are living. Shellmounds are not a garbage dump.”-During the early Jomon Period, 7,000-5,500 years ago, on the coast of Hunkawan Bay, there were shellmounds in the highlands and in watering-sites in the lowlands. Human skeletons have also been discovered here.
It shows the shellmounds were a burial ground for all. Kitakogane Shellmound, and it’s grave system, tells us about environmental changes and human adaptation to those changes at that time.

“Excavated Shell bracelets were traded from the South!” – Usu-morishi ruins are from the post Jomon period, 2000 years ago, along the Hunkawan bay. Excavated Cone Shell bracelets found here were the same as ones in Kyushu Island of southern Japan. This Jomon Art Gallery introduces the wide sea trade area in the ancient days.
You can feel the “beauty in life” by exhibiting various bone horn and shellfish products in the post-Jomon period (the 3rd century BC– 7th century). Even today, the Kanji, Chinese Characters used in written Japan language, for the word “shell” is also used to in the Kanji for treasure, money, savings, gifts!