Boaters, rock fishers, swimmers and surfers in NSW are being warned to take care around water over Easter with a sunny weekend forecast during one of the most dangerous periods for drownings.
NSW Emergency Services Minister Steph Cooke said widespread flooding in recent weeks had left hidden dangers around waterways.
"The impact of the flooding and heavy rain has reached far and wide, with sunken debris and displaced navigational aids increasing the risks to those enjoying our waterways this Easter long weekend," Ms Cooke said on Thursday.
"The weather can change quickly with very little warning."
She urged people to check the weather forecast and listen to authorities.
Marine Rescue NSW Commissioner Stacey Tannos said more than half of all calls for help received by Marine Rescue volunteers were due to engine, battery or fuel issues.
"Make sure you are carrying all of the required safety equipment, including a VHF marine radio, lifejackets, V-sheet, flares and EPIRB, and know how to use them," she said.
Boaters should also log their trip with Marine Rescue NSW.
Surf Life Saving NSW President George Shales said the Easter period was one of the most dangerous on the coast and urged people to swim between the flags at patrolled beaches.
"Last Easter our volunteer surf lifesavers conducted more than 100 rescues and we sadly saw multiple fatalities.
"We are expecting large numbers to head to the beach so please play it safe and listen to advice from lifesavers and lifeguards," Mr Shales said.
Meanwhile, double demerits will apply in NSW from Thursday until Monday for drivers caught speeding, using a mobile phone, or not wearing a seatbelt.