There isn't much he can do about it apart from ringing the alarm bell, but Houhora Harbourmaster Greg Gemmell is becoming increasingly concerned by great white shark sightings in and outside the harbour.
Sharks, which he described as big and "rather hungry," had been seen more than once by people who know what great whites looked like, he said.
Mr Gemmell told the Northland Age yesterday that he had heard of three separate confirmed reports last week alone. Given the number and geographic spread of sightings he doubted that it was a solitary shark, but more likely a family of them, and quite a big family at that.
"It's a bit of a concern," he said, adding that he had seen video of a great white leaping from the water near the fishing club boat ramp, a popular swimming spot with children.