← All posts

Freediving Accident Response: First Aid Protocols for SoCal Divers

Essential first aid protocols for freediving emergencies in Southern California. Know CPR, oxygen delivery, and when to call emergency services.


Freediving Accident Response: First Aid Protocols for SoCal Divers

Freediving in Southern California—whether you’re hunting kelp at La Jolla Shores, spearfishing off Point Loma, or exploring the reefs near Torrey Pines—demands respect for the ocean and a solid understanding of emergency response. Unlike recreational diving with tanks, freediving accidents happen fast and without warning. Every diver and dive buddy in San Diego needs to know what to do in the first critical minutes.

The Golden Hour Starts Immediately

Freediving injuries are time-sensitive. Shallow water blackout, shallow water blackout-related drowning, and arterial gas embolism can cause brain damage or death within minutes if not treated properly. Your response in the first 60 seconds determines outcomes.

Call 911 immediately. Do not delay. San Diego County has excellent emergency response infrastructure—Coast Guard stations at Point Loma and San Clemente can reach offshore locations quickly. Give dispatch your location (GPS coordinates, specific break name, or landmark), number of casualties, and type of emergency.

Immediate Rescue and Recovery

If a diver is unresponsive in the water:

  1. Bring them to the surface safely. Avoid aggressive handling that could cause spinal injury. Support the head and neck if possible.
  2. Get them out of the water. Transfer to a boat, float, or shore. Hypothermia accelerates in cold Pacific water, even in summer.
  3. Check responsiveness and breathing. Look, listen, and feel for 10 seconds—no longer.

If the diver is not breathing, begin CPR immediately. Do not waste time checking for a pulse; trained rescuers often cannot detect a pulse reliably in emergency situations.

CPR and Oxygen Delivery

Start chest compressions at 100–120 compressions per minute. For adults, push hard and fast at least 2 inches deep in the center of the chest. Maintain rhythm and don’t stop until emergency personnel arrive or the diver shows clear signs of life.

Rescue breaths matter in drowning. Unlike cardiac arrest on land, drowning victims benefit from rescue breathing. Give two rescue breaths for every 30 compressions (30:2 ratio). If you’re untrained in rescue breathing, hands-only CPR is acceptable—continuous chest compressions alone.

Oxygen is critical. If available on scene (boat oxygen kit, dive shop emergency supplies), have someone begin low-flow oxygen delivery once the diver is breathing or responding. Do not interrupt CPR to apply oxygen; integrate it into your response.

Hypothermia and Afterdrop

San Diego’s Pacific water stays cold year-round—even in August, La Jolla Shores runs 65–68°F; deeper reefs are colder. Hypothermia sets in faster than most divers realize, especially after a long bottom time or in deeper water off the Coronado Islands.

Remove wet clothing once the diver is on land. Wrap them in dry blankets or a survival blanket (reflective side inward). Do not apply external heat (heating pads, hot water) directly to the skin—this causes afterdrop, where peripheral blood vessels dilate and send cold blood back to the core, dropping core temperature further.

Keep the casualty horizontal and still. Movement increases heat loss. Gentle handling prevents cardiac arrhythmias in severely hypothermic divers.

Special Considerations for Freediving Injuries

Shallow water blackout (SWB) victims may appear to recover briefly, then decline rapidly. Even if a diver regains consciousness, they must be monitored continuously and transported to a hospital. Brain damage can progress hours after the incident.

Spinal injuries are rare in freediving but possible from impact with rocks or kelp entanglement. If there’s any mechanism for spinal trauma, immobilize the neck and spine during rescue.

Arterial gas embolism (AGE) is not typical in freediving (no air in lungs at depth), but pulmonary barotrauma from breath-holding or rapid ascent can occur. Symptoms include chest pain, difficulty breathing, or neurological changes. Treat as a medical emergency.

Dive Buddy Protocols

The best emergency response is prevention. In San Diego, always dive with a qualified buddy:

  • Use the buddy line system. Especially in kelp at La Jolla Cove or around Point Loma’s rocky reefs, stay within arm’s reach.
  • Establish clear signals. Agree on hand signals before entry. Know what “I’m okay” and “I need help” look like.
  • Surface interval discipline. Enforce 30–60 second minimum surface intervals between dives, longer in cold water or after deep bottom time.
  • Pre-dive briefing. Discuss depth, bottom time, exit strategy, and emergency procedures every single dive.

Local Training Resources

San Diego has excellent freediving instruction and first aid certification. Enroll in a Rescue Diver or Advanced Rescue course through AIDA or IANTD-certified shops. CPR and First Aid certification is non-negotiable—renew every two years.

Know Before You Go

Check Element for water temperature, surge conditions, and visibility before heading to La Jolla, Crystal Pier, or the Channel Islands. Cold, rough water increases accident risk. Calm, clear conditions at Sunset Cliffs or Windansea are ideal for practicing emergency protocols.

Download Element and stay informed on conditions. When you know what the ocean is doing, you can make smarter decisions about buddy pairing, bottom time, and whether to dive at all. Your response time in an emergency depends on preparation—and preparation starts with knowing conditions before you enter the water.