"He passed away and we moved back to New Zealand and I was looking for something to do," Chaisongkhram said.
"We had been looking for months and we found this place within our price range. We had been to Whanganui on holiday with my father in 2014. We think this is a nice town.
"My wife and I agreed this will be the place for us to raise our child and do this business."
Having Kowhai Park across the road was a bonus for the couple's son Mayson, 3.
They are not fazed by the prospect of future flooding on Anzac Pde and have been able to get insurance.
"We have been here four weeks and people have been asking what's happening. People seem happy we are going to be doing this."
They aim to open on September 4 if work goes to plan.