But currents swept Mr Wichman and his niece up to 2km south towards the Whenuakura River.
The girl managed to swim to shore but Mr Wichman got into difficulty in the surf.
"Somehow he ended up on the shoreline and the local volunteer fire brigade located him," said Senior Sergeant Thomas McIntyre, who coordinated the rescue response.
"He saved her life and sacrificed his own life."
Mr Wichman died despite efforts to revive him.
Sergeant McIntyre said initial reports were confused about just how many people were in trouble.
"When you're dealing with people in the water, you put a lot of resources into the operation until you can confirm that no one is in the water," he said.
The search and rescue operation involved police, volunteer firefighters, coastguard, surf lifesavers and the Taranaki Rescue Helicopter.
Helicopter pilot Mike Parker said he had continued to search of the beach and the surrounding water after Mr Wichman and the girls were found.
"They were still worried about other people still being in the water," he said.
St John's said two young girls were taken to Taranaki Hospital's emergency department with minor to moderate injuries.
It is believed that some of the group were on holiday in the area. "The whole family has had a tragic time during this New Year holiday period," Sergeant McIntyre said.
The tragedy highlighted the dangers of the western coastline, he said. "It's very exposed, with big swells and rips, and it can be unpredictable at times. It's a dangerous place."