Among the guests were Rotorua MP Todd McClay and mayor Steve Chadwick.
Mrs Chadwick said it was astonishing to know that the Netherlands Society had been active within the Rotorua community for five decades.
"They have contributed so much to our community. They're hard working and practical and have a great sense of community. Fellowships are a very important thing for them so it's lovely to be here today with them to celebrate their 50 years here in Rotorua."
Mr McClay said he was privileged to be part of it.
"When I first became a member of parliament seven years ago I spent a lot of time with the Dutch community. Fifty years is certainly something to celebrate, so I've come to show my respect and also to thank them for the effort they put in to the work they do around the community on an annual basis here in Rotorua."
• To find out more about the Netherlands Society and its market days call Anneke Meerkerk on (07) 357 4273.