Australian toyco Moose Toys is launching its first-ever Shopkins Golden Ticket Hunt.

The company behind the hit grocery-themed collectible property is putting on a US-wide treasure hunt in celebration of Shopkins’ fifth anniversary on the market.

The season five collection includes more than 500 Shopkins and features new categories like sports and music. A bracelet is now available in every five-pack, and can be personalized with Shopkins charms.

For the nationwide marketing initiative, five golden tickets have been randomly hidden inside Shopkins’ season five two-packs, five-packs or 12-packs. The hunt launched on August 29 and will run until all five tickets have been found.

Fans who find a ticket will win a trip for two to Melbourne, Australia, where they will be greeted by their favorite Shopkins characters. The winners will be taken to a private Shopkins party and have the opportunity to meet the toys’ designers. They will also receive a prize pack filled with Shopkins products, including items that have never been released in the US.

Full details on the treasure hunt—including the fact that a sixth trip could be won by a mail-in entrant—are available at www.shopkinsworld.com/goldentickethunt.

The initiative comes as the collectible property solidifies its standing as a global phenomenon. Shopkins reported more than US$100 million in retail sales in 2015 and has added a number of new licenses in North America. Following Shopkins’ massive success, Moose Toys has also launched two new collectible brands, The Grossery Gang and Twozies.