The children who came along, he described as "absolute flagrant nerds" who were bringing him bugs they found to ask about.
"We've been finding ant colonies, cave weta, case moth caterpillars. We've been finding water spiders, nursery web spiders, damsel flies."
Kleinpaste said for the children it was about inquiry learning. "And what better to do this than in this wetland".
While the children were enquiring about the bugs they were learning literacy, numeracy and science.
"That's the whole idea, to create nature literate kids."
He led a crowd of around 80 people on a second tour of the wetlands yesterday afternoon where he talked about the various bugs he came across.
Children and their parents followed him closely, fascinated with what might come out of his mouth next. After finding a bee on a flax bush he regaled a tale of having 60,000 killer bees on his face.
Meanwhile Kiwi North educator Shirley Peterson was on hand to teach children about different types of pests and traps.
Kleinpaste rounded out his day by speaking at The Calfer Suite in Forum North about the value of biodiversity and what can be learnt from bugs and other organisms.