Sharks flapping their tails in the waves at Papamoa was enough to send several swimmers beating a hasty retreat to shore on Saturday.
The 2m-3m sharks, pictured, believed to be bronze whalers, were spotted by Summer Wilson and Isaac Chase.
"The sharks were flapping their tails in the waves and splashing around. They were probably there for 10 minutes," Mr Wilson said.
Papamoa Surf Life Saving Club lifeguards watched the sharks through binoculars until they went back out to sea.
Later in the day, a bronze whaler was caught on a kontiki long-line further up the coast near Harrison's Cut.