Introduction to the Sino-Japanese Friendship Sakura Garden: The Sino-Japanese Friendship Sakura Garden was built in 1994 on the tenth anniversary of the establishment of sister cities between Kaifeng City in China and Toda City in Japan. Both parties funded the construction and planted more than 2,000 cherry blossoms. When it is in full bloom in mid-April, the flowers are like a sea and there are crowds of people.