Police have urged people to commemorate Anzac Day respectfully, with officers to be out in force at events across the Illawarra.
A high-visibility policing operation will take place on Thursday, to ensure the safety of the large crowds gathering for dawn services and marches.
The operation will involve general duties officers from the Wollongong and Lake Illawarra police districts, as well as officers attached to highway patrol and proactive crime teams, and detectives.
Lake Illawarra Police District Commander, Superintendent Dean Smith, said the national day of remembrance should be observed appropriately.
Police will also be targeting drink-driving and conducting random breath tests throughout the local area.
"This day is about honouring the brave men and women who have served our country and paying tribute to those who died fighting for our freedom," Supt Smith said.
"Like all major events, we want people to enjoy Anzac Day in a safe and secure environment, without the fear of being subjected to anti-social behaviour or alcohol-related crime."
Supt Smith said given Anzac Day this year fell during the school holidays, and after the Easter long weekend, police were anticipating a busy weekend on the roads.
"Police will also be targeting drink-driving and conducting random breath tests throughout the local area," he said.
"Both marked and unmarked police vehicles will be patrolling all major roads and back streets, so if you take the risk and drink-drive, you will be caught.
"Plan how you're getting home, organise a designated driver or pre-arrange transport. We want everyone to get to and from commemorations safely."
Double demerits - for all speeding, mobile phone, seatbelt and motorcycle helmet offences - began at 12.01am on Wednesday and run until 11.59pm on Sunday, as part of Operation Go Slow.