The Koi Society of Western Australia is proud to present our biggest event of the year. The 32nd Annual Koi Show! FREE ENTRY. 10am – 2pm, Sunday 21 May 2023. At the Wanneroo Show Grounds. Corner of Ariti Ave & Wanneroo Road, Wanneroo. Hundreds of WA’s best and biggest koi. Koi and koi goods for sale. Displays from the Bonsai & Orchid society. Plus food & drink vans.