At the same time, you can also enjoy beautiful Cosmos and Soba Flowers.
Tourist Info.
There are parking and restroom.
Admission: 410 Yen for Adult, 210 Yen for senior, 80 Yen for kids. There is a group discount.
Open: 9:30
Close: 17:00 (3/1 to 7/20 and 9/1 to 10/31), 18:00 (7/21 to 8/31), 16:30 (11/1 to end of Feb.)
Close Day: Monday.
Access
0. at Mito Station.
1. use JR Joban Line to Katuta station.
2. use local bus to Hitachinaka Kaihinkoen.
410 JPY
3 hr.
New Wave Samurai Movie. 
映画好き集まれ！