From the website:
Fremantle’s famous BUILD YOUR OWN TOY ADVENTURE TRAIL returns bigger and better this July.
FREOBUILDS is a free ticketed school holiday activity from Friday 9 - Sunday 18 July. Kids complete the trail by visiting 10 unique TINY BUILDS designed by some of Perth's top LEGO® builders and collect 3 codewords to receive their FREE LEGO® TOY.
Get in quick as numbers are strictly limited. One free toy per child.
Ticket registration page: EventBrite
City of Fremantle: City of Fremantle