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newSchoolWorks.com › VoTechWorks › Agriculture, Environment & Public Service › Aquaculture & Marine Science Tech › Commercial Diving Introduction for Aquaculture and Marine Science › Lesson 8
AGR-AQUA50-06 · Lesson 8 · 22 clock hours · practice

PADI Rescue Diver — In-Water Rescue Skills Practice

Objective. Students will execute tired-diver tow, panicked-diver approach and control, and submerged unresponsive diver search and surface rescue to PADI Rescue Diver performance standards in confined and open water.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed professional in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.

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PADI Rescue Diver — In-Water Rescue Skills Practice

This lesson moves you from classroom knowledge into the water. You will practice three core rescue skills to PADI Rescue Diver performance standards: the tired-diver tow, the panicked-diver approach and control, and the submerged unresponsive diver search and surface rescue. Mastering these skills is not optional — they are the foundation of safe commercial and scientific diving operations in aquaculture and marine science environments.

Why These Skills Matter in Aquaculture and Marine Science

Aquaculture divers inspect nets, clean pen structures, and monitor fish health, often in low visibility and cold water. Scientific divers collect samples at depth. Fatigue, entanglement, and equipment failure can quickly turn a routine dive into an emergency. Because you may be working with a small crew far from emergency services, every team member must be capable of completing a real rescue — not just talking about one.

Safety Before You Enter the Water

Before any in-water session, your instructor will conduct a pre-dive safety check. All divers must wear a properly fitted wetsuit or drysuit appropriate to water temperature, a buoyancy compensator device (BCD), and a mask, fins, and snorkel. Scuba units must pass a buddy check (BWRAF: BCD, Weights, Releases, Air, Final check). Remove or secure all dangling equipment that could snag the victim or the rescuer. Never practice rescue skills without a certified instructor and at least one additional spotter on deck or at the pool edge. Establish a clear emergency action plan — know the location of the oxygen unit, the nearest AED, and how to call emergency medical services before drills begin.

Skill 1 — Tired-Diver Tow

A tired diver is still conscious but has little energy left to self-rescue. Your job is to support them and move them efficiently to safety.

Approach: Signal the diver you are coming. Approach from behind to reduce the risk of being grabbed.

Contact: Reach under the diver's arms and grasp the top of their BCD or tank valve area to secure them against your chest. Keep their face above water at all times.

Tow: Kick steadily using a strong flutter or frog kick. Do not release contact. Maintain the tow for the required minimum time and continue until you reach the designated exit point. During a real rescue, you would tow until the diver is fully out of the water.

Key safety point: If you feel yourself tiring, signal your safety spotter immediately. Rescuer exhaustion is a leading cause of double-drowning incidents.

Skill 2 — Panicked-Diver Approach and Control

A panicking diver may push you underwater in their desperation to stay at the surface. This is one of the most dangerous situations in rescue diving.

Recognition: Look for wide eyes, irregular or fast breathing, thrashing arms, and an inability to respond to verbal commands.

Safe approach angle: Approach from the side or slightly behind, never from directly in front. Keep one arm extended toward the diver and be ready to submerge if they lunge.

Talk-first method: From a safe distance of about 1–2 meters, make firm eye contact and give a loud, calm, direct command such as "Stop! I am here to help you. Look at me." A momentary pause in panic can allow you to close the distance and establish control.

Control: Once close enough, position yourself behind the diver, secure their BCD, inflate their BCD if needed, and reassure them continuously while moving toward safety.

Defense: If the diver grabs you and pulls you under, tuck your chin, push down on their shoulders, and submerge. Most panicking divers will release when they feel themselves going down. Surface behind them and re-approach.

Skill 3 — Submerged Unresponsive Diver: Search and Surface Rescue

This scenario simulates finding a diver who has lost consciousness underwater. Speed and correct technique determine survival.

Locate: Use a systematic search pattern if the diver is not immediately visible. In confined water drills, the weighted mannequin will be placed within the search area.

Ascent: Approach the mannequin from behind. Secure it under one arm, holding the regulator or mask in place if possible to protect the airway. Ascend at a controlled rate — rapid uncontrolled ascents risk injury to a real victim and to you.

At the surface: Immediately establish an open airway by tilting the head back. Remove the regulator or snorkel from the mouth. Give two rescue breaths using a pocket mask or rescue breathing mask before beginning transport. Watch for chest rise to confirm effective ventilation.

Transport: Tow the victim to the pool edge or boat platform while continuing rescue breaths every five seconds if you can maintain airway control during tow. Call for help immediately upon surfacing — this is a cardiac arrest scenario until proven otherwise.

Equipment Notes

Use only the rescue breathing mask provided — it creates a seal and protects both rescuer and victim. The throw bag is a surface supplement for tiring swimmers but is not a substitute for in-water contact rescue when the victim is unresponsive. Always rinse and inspect equipment after each drill session.

Performance Standard

Your instructor will evaluate each skill against the PADI Rescue Diver skill checklist. Every critical step — including airway establishment, sustained contact during tow, and safe panicked-diver approach — must be marked satisfactory. If any critical step is unsatisfactory, you repeat the entire skill. There are no shortcuts: the standard exists because real rescues depend on automatic, correct execution under stress.

Key terms8

Tired-diver towA rescue technique in which the rescuer approaches a fatigued but conscious diver from behind, secures them, and tows them continuously to a safe exit point without releasing contact.
Panicked diverA diver in acute psychological distress who may thrash, grab, or climb on the rescuer in an attempt to stay at the surface, posing a danger to both parties.
Talk-first methodA PADI rescue approach in which the rescuer calls out loudly and calmly from a safe distance to interrupt the panic response before closing in on a distressed diver.
Rescue breathing maskA one-way-valve pocket mask used to deliver rescue breaths to an unresponsive diver at the surface without direct mouth-to-mouth contact.
Submerged unresponsive diverA diver who has lost consciousness and sunk below the surface, requiring the rescuer to descend, secure the victim, ascend safely, establish an airway, and begin rescue breathing.
BWRAFThe standard pre-dive buddy-check acronym: BCD, Weights, Releases, Air, Final check — completed before every dive to verify equipment readiness.
Rescue breathA ventilation delivered by a rescuer through a mask or mouth-to-mouth technique to an unresponsive victim; two are given immediately upon surfacing with an unresponsive diver before transport begins.
Critical stepA skill element identified by PADI as essential to rescue success; failure to perform a critical step correctly requires the student to repeat the entire skill rather than just the failed element.
In class: Tired-diver tow drill: in pairs, one student acts as an exhausted diver at the surface; the rescuer approaches from behind, secures the diver, and tows to a designated exit point using a two-minute tow minimum without releasing contact. · Panicked-diver scenario: rescuer approaches from a safe angle, calms a simulated panicking diver (played by classmate using scripted behavior), and assists them to safety while protecting themselves from being submerged by the victim. · Submerged unresponsive diver drill: rescuer locates a weighted mannequin placed at the bottom in a confined water area, brings it to the surface, establishes airway, and initiates two rescue breaths before the pair removes the victim to the pool edge for further care.
Materials: Open-circuit scuba units, rescue mannequin (weighted), throw bag, tow line, rescue breathing mask, PADI Rescue Diver manual, confined water pool and adjacent open water if available
Check: Instructor-evaluated skill checklist per PADI Rescue Diver standards: each of the three rescue skills marked satisfactory; unsatisfactory on any critical step (e.g., airway not established, rescuer submerged) requires a full repeat of that skill.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

PADI Rescue Diver — Rescue Skills
1. When towing a tired diver to safety, from which direction should the rescuer approach?
PADI Rescue Diver — Rescue Skills
2. What is the primary reason the PADI Rescue Diver standard requires a rescuer to approach a panicking diver from the side or behind rather than head-on?
PADI Rescue Diver — Rescue Skills
3. After surfacing with a submerged unresponsive diver, what is the correct immediate action before beginning the tow to the pool edge?
PADI Rescue Diver — Evaluation Standards
4. During a tired-diver tow drill, a student rescuer releases contact with the victim for 15 seconds to readjust their fin. How will the instructor most likely evaluate this performance?
PADI Rescue Diver — Rescue Skills
5. A classmate is roleplaying a panicked diver and grabs the rescuer's arm, pulling them below the surface. What is the correct defensive response?
PADI Rescue Diver — Equipment and Safety
6. Which piece of equipment is specifically required for delivering rescue breaths to an unresponsive diver at the surface during PADI Rescue Diver skill practice?
PADI Rescue Diver — Pre-Dive Safety
7. Before any rescue diving practice session, students must complete a buddy check using the BWRAF acronym. What does the 'R' in BWRAF stand for?
PADI Rescue Diver — Rescue Skills
8. An aquaculture diver working alone in a net pen notices her dive partner has stopped moving and is sinking. Visibility is approximately 3 meters. Which search method is most appropriate for locating the partner quickly in a small, confined area?
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