Know the beach flags
On lifeguarded beaches the flags are your first source of information. Learn them before you go in:
- Red and yellow flags — the lifeguarded area. This is the safest place to swim, bodyboard and paddle, and it is patrolled.
- Black and white chequered flags — the zone for surfboards, kayaks and other craft. Keep this area clear of swimmers.
- Red flag — danger. Never go into the water when the red flag is flying.
- Orange windsock — offshore winds. Inflatables can be blown out to sea in seconds, so leave them at home.
Not every beach is lifeguarded, and patrols are seasonal. Where there are no flags, take extra care and follow the advice below. The RNLI’s water-safety pages explain the flag system in full.
Rip currents: the number-one hazard
A rip current is a strong, narrow flow of water heading back out to sea — nature’s way of draining the waves that pile onto a beach. Rips can travel faster than an Olympic swimmer and are the single most common reason people need rescuing from surf beaches. They often look like a calmer, flatter channel between breaking waves, or a streak of churned, sandy water pushing seaward.
If you are caught in a rip, do not try to swim against it — you will only exhaust yourself. Stay calm, keep hold of anything that floats, and if you can stand, wade rather than swim. Raise a hand and shout for help. If you can swim, go parallel to the beach to escape the flow, then head for shore. The most important thing is not to panic.
Cold water shock — even in summer
The English Channel is cold for most of the year, rarely rising far above the mid-teens Celsius even at the height of summer. Entering cold water suddenly triggers cold-water shock: an involuntary gasp, a racing heart and a few minutes of dangerous panic that has claimed many strong swimmers. If you fall unexpectedly into cold water, remember the RNLI’s Float to Live advice: lean back, spread your arms and legs, and float until the shock passes and you can control your breathing — then call for help or swim to safety. Fighting the water in the first sixty seconds is what gets people into trouble.
Simple rules that prevent most incidents
- Check the tide times before you go, especially near the Beachy Head and Birling Gap cliffs, where beaches are cut off at high water.
- Swim at a lifeguarded beach, between the red and yellow flags, whenever you can.
- Never swim alone, and keep a close eye on children and weaker swimmers at all times.
- Don’t rely on inflatables — an offshore breeze can carry them out fast.
- Alcohol and open water do not mix; save it for after your swim.
- Carry a means of calling for help, and know that 999 — Coastguard is the number at the coast.
If someone is in trouble
Your instinct will be to go in after them — but entering the water yourself is how one casualty becomes two. Instead: call 999 and ask for the Coastguard straight away; throw or reach with anything that floats; and keep the person in sight so you can guide rescuers. HM Coastguard coordinates the response and can task a lifeboat, the coastguard helicopter or the shore rescue team in minutes. Understanding how lifeboats respond shows why that early call makes all the difference.