Yum cha means to drink tea in Cantonese. But it is also a Cantonese tradition of brunch involving Chinese tea and Dim Sum.
Dim sum is a large range of small dishes that Cantonese people enjoy, while Yum Cha is traditional tea that is enjoyed with Dim Sum.
There are many places to get some of the best Dim Sum in Perth, but Dragon Palace, Northbridge Chinese Restaurant and Little China Girl are highly recommended.