Advice needed from Brisbane locals

Where is a location in Brisbane where lots of families with young children congregate, or pass through?

I’m planning a promotional activity for early October to build awareness of Three Sun Possums and want to hold it where there are lots of children 1 – 5 years old, with sun-conscious parents for whom Three Sun Possums would offer a gorgeous solution to the sun protection dilemma. Looking for a location to hold the activity on a Saturday and maybe Sunday.

Any suggestions where a good spot would be? Please email me: michelle@threesunpossums.com.au