Senior Constable Peter Comer said not wearing a lifejacket was dangerous and unacceptable – especially when MetService had forecast 25 knot easterly winds gusting to 35.
"Other kayakers stopped were very well set up which shows it's not hard to ensure your safety, but one without a lifejacket is one too many," he said.
"Conditions can change quickly out on the water and lifejackets increase your survival time in the water, it's as simple as that."
Boaties are also reminded they should have two forms of waterproof communication on board, leave their trip intentions with someone onshore and always check the forecast.