"I was very surprised to see so many people of Dalmatian descent here. They came more than 150 years ago to some very harsh conditions, but they were embraced by the Maori people because they shared the same values," Dr Kusen said.
"The were about hard work and family and helping each other out and they shared the harsh conditions with the people here. And that's why they were so easily accepted.
"I am surprised and very proud at the recognition given to the contribution of Croatian and Dalmatian people to the area."
He was impressed by his tour around Gumdiggers Park, which has original gumdigger huts and a store, equipment, including an early petrol-powered chainsaw a small mill and many other items.
"It's amazing to see the conditions they lived and worked in. But I'm also proud to see the innovation they used here," Dr Kusen said. "Innovation and creating and using new technology was important and what drove them on."
He was amazed when he saw an old photograph on the park's wall of gumdiggers in front of a kauri log 6-7m in diameter.
"It was a very harsh environment, but they were in it with the Maori and other locals and those circumstances helped build the friendships that have lasted such a long time and helped them integrate."
Kaye Dragicevich, from the Kaitaia Dalmatian Cultural Club, said it was an honour to host the ambassador and show him the Dalmatian history of the area.
The club also hosted Dr Kusen at a dinner last night.