Here are some other options depending on the context:
* "Geniet dit": This literally translates to "Enjoy it," and is used when someone is having a good time doing something specific.
* "Sê lekker": This means "Have a good time" and is often used as a farewell phrase.
* "Maak 'n lekker tyd": This translates to "Have a good time" and is used when someone is about to do something fun.
The best way to choose the right phrase depends on the situation.