Rip currents are the leading cause of drowning at beaches worldwide, responsible for more deaths annually than shark attacks or surfboard injuries combined. They are fast-moving channels of water that flow directly away from the shore, and they can pull even the strongest swimmers out to sea in seconds. If you surf, you will encounter rip currents. Knowing how to handle them is not optional — it is essential survival knowledge.
How Rip Currents Form
Rip currents form when waves break more strongly in some areas than others, creating a pressure difference in the water. The water that piles up against the shore from breaking waves needs to find a way back out to sea, and it does so through channels — rips — that cut through the breaking wave zone. These channels can be identified by darker, deeper-looking water between areas of breaking waves, or by a noticeable flow of water moving away from the shore even when waves are coming in.
Rip currents are most commonly found near sandbars, around points of land, and near piers and jetties. They can be narrow (a few meters wide) or quite wide (up to 50 meters or more). The speed of a rip current can range from gentle (slow enough to walk against) to extremely fast (faster than an Olympic swimmer cannot swim against it).
How to Identify a Rip Current
Learn to spot rip currents before you paddle out. Look for: a break in the incoming wave pattern — where waves are not breaking as they are along the rest of the beach. A channel of darker, deeper water cutting through the shallower sandbars. An area of choppy, churning water that looks different from the surrounding surface. Foam, seaweed, or debris moving steadily seaward while waves come in. A gap in the wave break itself — a section where the waves do not seem to be breaking as strongly or consistently.
Many beaches have warning flags or signs indicating known rip current areas. Always check for these before paddling out. If you are at an unfamiliar beach, ask a lifeguard or local surfer where the rips are located.
What to Do If You Get Caught in a Rip
The most important thing to remember: do not panic. Rip currents do not pull you under the water — they pull you away from shore. If you panic and try to swim directly back to shore against the current, you will exhaust yourself. Instead, the correct response has three steps: Stop, Signal, Swim.
Step 1: Stop. Do not fight the current. Float on your back and let the rip carry you. Preserve your energy. Rip currents typically weaken beyond the breaking wave zone, where they dissipate entirely. You are not in immediate danger — the danger comes from fighting and exhausting yourself.
Step 2: Signal for help. Raise your arm and call for help. If you have a surfboard, stay on it or hold onto it — it provides additional floatation and visibility. Wave your arm slowly and consistently to attract attention.
Step 3: Swim sideways. Once you have stopped struggling and are floating, swim sideways (parallel to the shore) to get out of the rip channel. Most rip channels are narrow, and swimming 20 to 30 meters parallel to the shore will get you into water where the incoming waves can push you back toward the beach. Then, when you feel the incoming push, angle your body back toward the shore and ride the waves in.
Preventing Rip Current Incidents
Prevention is the best strategy. Before you paddle out, identify the rip channels and avoid them. Choose an area where waves are breaking consistently — this typically means the water is shallower and the rip is not running as strongly. If you see a section of water that looks like a river cutting through the waves, that is a rip. Do not paddle through it if you can avoid it.
If you are ever unsure about conditions, ask a lifeguard or local surfer. Most rip current fatalities occur at unguarded beaches, so surf at patrolled beaches whenever possible. See our Surf Safety Essentials guide for more on ocean safety.