Strawberry picking in December

Hi,
Please help me as I went through a lot of your recommended farms website but all seems to not have strawberries picking in December.
Our group is 4 adults 3 children, available to go on either Sunday 16, Wednesday 19, Monday 24, Wednesday 26 in December.
Would you please recommend any farm that's in operation?

Where in Japan?
http://www.jalan.net/theme/berry/

Thank you for swift reply Uji.
Anywhere near Tokyo.

In Chiba Prefecture although most strawberry u-pick farms won't open till early January next year there are some that start operating from mid December.

http://www.d3.dion.ne.jp/~aiba/
http://akiraichigo.com/fee.html
http://www.ishibashi15.com/
http://strawberry-ote.com/charge.html
http://maruki-ichigo.com/fee.html

Thank you William.