If you don’t have roaming when you are traveling in Hong Kong, where can you find free WiFi? When you’re on the street: it will be hard to find an unprotected WiFi. WiFi from cafes are pretty much protected with passwords and you will need to purchase at their shops to get the passwords. So the answer is: go to any big shopping malls or McDonald’s around you. They always provide free WiFi for a limited period of time. It should save you from some troubles looking for free WiFi.