The Hakka Museum in Sanxia runs ongoing activities for children.
Here a list of the latest activities and performances, in Chinese.
June 20 2:30pm-3.30pm: Dramatic performance in the theater
Until July 25th : Making scented satchets for the Dragon Boat Festival; making windmills; and decorating cookies
I apologise for the limited details but I just got back from NZ and am still trying to catch up on other work!
Read this for general English information.