CLC of CUHK provides Cantonese Courses to non Chinese-native speakers. The full name of the classes should be "Cantonese as a foreign / second Language". The center can provide professional training to teachers who want to teach Chinese (Putonghua & Cantonese), but most of the students are the beginners who want to start from learning the language.
This year the Summer School start from July. Schedule is quite fexible and classes are specailly made for elementary/intermediate levels.
Also evening classes in downtown and regular full time study are available. Regular Full Time students study 5 days a week, 3 hours per day. Cantonese Class focus on Oral skill trainning. New term(Summer) will start at 14 May. Check more at
www.cuhk.edu.hk/clc.
Glad to know that you enjoyed the class!