Kasori Shell mound was designated as a "Special Historical Site" on Oct 13, 2017. This is the largest shell mound in Japan. It is said that this shell mound is older than 5000 years. There is a small museum that shows about the mound and the life of ancient Japanese people. You can walk through the part of a shell mound that is being cut. Very exiting to know about the life of ancient- over 5000years - life. Unfortunately, there's no restaurants near this site, only one bending machine available. You'd better bring your lunch and drink. On weekends, you can try to make Jomon style pottery.

First, the museum does have a very useful and informative pamphlet in (perfect) English, so go there first, get the English explanation, and sit and read that for a few minutes. Once you have the background information, then go around the museum and to the three on-site cutaway middens and the recreated Jomon-era houses. We had two friendly English-speakers from the museum who helped us, and one of them visited places around the park with us and gave us some wonderful extra personal and historical information, answered all our questions and helped with a project we were doing. On the day we went, there was a pottery group working around the back, making replica Jomon pots, and we were invited to go and watch them. Also at the back is an Edo-era house, built in the mid-1700s for some prosperous Chiba family. It is not completely restored, but it is being conserved, and we were allowed in there too. If you have an interest in ancient history, then this is really surprisingly good.