Beach and Water Safety — Swimming Between the Flags and Dealing with Rip Currents
From the swim between the red-and-yellow flags principle to identifying and escaping rip currents and rock fishing lifejacket rules — an Australian water safety survival guide based on official SLSA and Royal Life Saving materials.
Why it matters — rule number one is 'swim between the flags'
Australia is a country where the ocean and water are at the centre of life, yet the National Drowning Report published each year by Royal Life Saving has officially noted that people born overseas account for a high share of drowning deaths. This is less a matter of swimming ability than an information gap about the hazards specific to Australian waters (rip currents and swell) and the safety system (flags and patrols). If you remember only one thing, make it this — swim only between the red-and-yellow flags (Swim between the flags). The flags mark the area lifesavers are watching in real time, and on beaches and at times without flags there is no patrol.
How to read the flags and signs
The area between the two red-and-yellow flags is the patrolled swimming zone. A red flag on its own means 'no swimming (beach closed)', and a yellow flag means 'caution (hazards present)'. A black-and-white chequered flag marks a zone for surfboards and other watercraft, which ordinary swimmers should avoid. Also be sure to check the safety signs at the beach entrance (warnings for rip currents, swell, jellyfish, etc.) before entering the water.
Pre-swim safety routine — from choosing a beach to entering the water
Water safety is mostly decided before you get in the water. You need the habit of checking in advance which beaches are being patrolled and what hazards exist that day, and of moving by the flags and signs once you are on site.
Finding patrolled beaches with BeachSafe
On the BeachSafe website and app run by SLSA, you can search patrol status, patrol hours, hazard information and facilities for beaches across the country. Many beaches are patrolled only during the day from spring to autumn, so it is important to check the season and time of day as well.
- Before leaving: check patrolled beaches and patrol hours on BeachSafe + check the weather and swell forecast
- On arrival: locate the red-and-yellow flags — enter the water only between the two flags
- Before entering: read the safety signs, then watch the waves and water movement for 5–10 minutes (identify where the rips are)
If you cannot see any flags, it means there is no patrol at that beach at that time. If something goes wrong, no one will spot and rescue you straight away, so postpone your swim or use BeachSafe to find a nearby patrolled beach and move there.
Rip currents — the biggest danger on Australian beaches
A rip current is a flow in which water pushed toward the shore returns out to sea along a narrow, fast channel, and it is cited as the leading cause of beach rescues in Australia. The current is so fast that even strong swimmers become exhausted swimming against it. The most dangerous trap is that the calm-looking spot with no breaking waves is often exactly where the rip is — the very spot beginners choose because it 'looks safe'.
- Sign 1: a calm, darker band of water where the waves are not breaking, while waves break white on either side
- Sign 2: a narrow channel where foam, sand or debris is flowing out to sea
- Sign 3: a corridor-shaped stretch where the surface ripples differently or the water looks murkier than its surroundings
If you are caught, the key is do not panic and do not swim against the current. Relax, float, and raise and wave your arm to call for help, or if you have the energy, swim parallel to the shore (toward where the waves are breaking) to escape the rip, then ride the waves back in.
Four situational risks — accidents happen beyond the beach too
Drowning does not only happen at the beach. The nature of the risk differs by activity and location, so learn the key rules for each situation.
Swimming between the flags is rule number one. Watch out for sudden drop-offs and waves breaking right at the water's edge (shore break), and never dive where you do not know the depth — a major cause of spinal injuries.
One of the most dangerous recreational activities in Australia. In some NSW local government areas, wearing a lifejacket is a legal requirement (fines apply for breaches), and it is strongly recommended elsewhere too. The basics: wear non-slip footwear, watch the swell, never turn your back on the sea, and never go alone.
A large share of drowning deaths in Australia occur not in the ocean but in inland waterways such as rivers and dams. Depth, current speed and underwater obstacles are invisible, and the water temperature can drop sharply. Never enter the water or dive after drinking, and wearing a lifejacket is the rule for boats and kayaks.
In northern Australia (QLD, NT and northern WA), roughly November to May is jellyfish (stinger) season — avoid swimming outside the designated stinger nets, and in crocodile habitat follow the 'Be Crocwise' guidance. For sharks, follow each state's official alerts and beach signage.
Water safety checklist — 5 rules
Sticking to just these five rules before and after any time in the water will prevent most accidents. When going with family or friends, check them for each other.
- Before leaving, check patrolled beaches and hours on BeachSafe + check the weather, swell and any warnings
- Do not enter the water straight after arriving — watch for 5–10 minutes to locate the flags and any rips (calm, darker bands)
- Never swim alone; keep young children under constant supervision within arm's reach (about 1 m)
- UV protection — Slip (on a shirt) Slop (on sunscreen) Slap (on a hat) + plenty of shade and water
- In an emergency, relax, float and raise your arm to signal — to rescue someone else, do not jump in yourself; call a lifesaver or 000 and use a flotation device
Common mistakes and absolute don'ts
These are the classic mistakes that appear again and again in drowning reports. Alcohol combined with choosing the 'calm-looking spot' is the most common combination.
- Swimming or diving after drinking — a major risk factor in adult drownings; judgement, temperature regulation and the ability to stay afloat are all impaired
- Choosing the 'calm-looking spot' outside the flags — the place where the waves are not breaking is very likely a rip current
- Exhausting yourself by swimming against the current toward shore when caught in a rip — floating, signalling and swimming parallel is the right answer
- Swimming outside patrol hours, at night or at remote beaches — if something goes wrong, there is no one to spot you
- Rock fishing alone, without a lifejacket, with your back to the swell — all three are classic patterns in fatal accidents
Useful official links
- BeachSafe (SLSA 해변 검색)(opens in a new window)
SLSA's nationwide beach search service — check patrol status, patrol hours, hazard ratings and facility information (mobile app available)
- Surf Life Saving Australia(opens in a new window)
Official Surf Life Saving Australia website — the swim between the flags principle, rip current educational materials, beach safety campaigns
- Royal Life Saving Australia(opens in a new window)
Royal Life Saving Australia — the National Drowning Report (drowning statistics), inland waterway safety, and the Keep Watch child supervision guidelines
- NSW 정부 — Water Safety(opens in a new window)
NSW Government water safety — official state regulations and safety information, including designated mandatory lifejacket zones for rock fishing
- Cancer Council Australia(opens in a new window)
Cancer Council — the Slip Slop Slap UV protection guidelines and SunSmart advice
Frequently Asked Questions
Should I avoid swimming at beaches without flags?▾
It is not recommended. The red-and-yellow flags mark the area that lifesavers (lifeguards) are actively watching in real time, and on beaches or at times without flags there is no patrol at all. That means if you get caught in a rip current, there is no one to spot you. The safest approach is to search SLSA's BeachSafe app or website for a nearby patrolled beach and its patrol hours, and swim there.
What should I do if I get caught in a rip current?▾
First, don't panic and don't swim against the current toward shore — exhaustion is the leading cause of drowning. Relax, float, and raise one arm high and wave it to signal a lifesaver for help. If you have the energy, swim parallel to the shore (toward where the waves are breaking white) to escape the rip's narrow channel, then ride the breaking waves back to shore. Rips usually weaken after a certain distance.
Is a lifejacket really a legal requirement for rock fishing?▾
It depends on the state. In NSW, under the Rock Fishing Safety Act 2016, wearing a lifejacket while rock fishing is a legal requirement in designated local government areas (LGAs), and fines can apply for breaches. The list of mandatory zones is expanded and changed from time to time, so check the latest designated areas on the NSW Government's official website before heading out. In other states, wearing a lifejacket is strongly recommended regardless of whether it is legally required.
If I'm a strong swimmer, isn't it fine to swim outside the flags?▾
It is dangerous. According to SLSA educational materials, the speed of a rip current can be faster than even a trained competitive swimmer can swim. In other words, swimming ability alone cannot beat a rip. Also, the flags are repositioned every day by lifesavers to the safest spot based on that day's waves and rip conditions, so the area outside the flags is very likely 'the zone judged dangerous today'.
How worried should I be about jellyfish, sharks and crocodiles?▾
The actual probability of an incident is low, but the risk is real depending on region and season. In northern Australia (QLD, NT and northern WA), roughly November to May is jellyfish (stinger) season, so avoid swimming outside designated areas, and in crocodile habitat follow the 'Be Crocwise' guidance. For sharks, follow each state's official alerts and beach sirens and signage. Statistically, rip currents and swimming after drinking are far greater risks than these animals.
Are there rules for supervising children around water?▾
Royal Life Saving's Keep Watch guidelines are the standard. Around water, infants and young children must be actively supervised by an adult always within arm's reach (about 1 m); 'supervision gaps' — looking at your phone or assuming another adult is watching — are the classic pattern behind incidents. Water toys such as inflatable tubes and arm floaties are not lifejackets and cannot replace supervision.
How do I check beach patrol hours?▾
You can check whether and when each beach is patrolled on the BeachSafe app and website. Many beaches are patrolled only during the day from spring to autumn (roughly September/October to around April), and even popular beaches often have no patrols in winter, early in the morning or in the evening. Outside patrol hours a beach is in the same 'unwatched' state as a beach without flags, so always schedule your swim within patrol hours.