David Polley B.Sc.

Technical, Trimix, Cave & Wreck Instructor Trainer

David has over 10 years of experience as a dive instructor teaching in a wide range of aquatic environments. Dave began his professional dive career in the UK as a dive instructor whilst studying for his degree in Environmental Biology at the University of Bath. He joined Tech Diving Thailand in 2011 and now manages the Tech Diving Thailand Technical & Recreational Department.

David leads the Tech Diving Thailand technical facility ensuring high standards are maintained across all technical operations. David is responsible for all technical programs at Tech Diving Thailand from CCR to advanced trimix courses and technical instructor courses. He also runs regular cave diving trips, teaching PSAI Cavern, PSAI Intro to Cave and PSAI Full cave diving courses and leading experienced cave divers into the many deep caves found on the mainland such as Song Hong and Sra Keaw. Most of these caves require CCR trimix dives with lengthy decompression. David runs PSAIM NAUI and PeoTec TecRec programs and has written some PSAI TecRec diving courses such as Advanced Wreck and Cave diver. He is a BSAC Advanced Mixed Gas Instructor, BSAC Inspiration CCR instructor and teaches the whole range of BSAC tech courses. David is also a PSAI Instructor teaching closed circuit rebreather, Full cave, advanced nitrox and decompression procedures courses, extended range, Trimix, PSAI side-mount etc

As an experienced CCR Inspiration/Evolution instructor his main interest is in CCR deep wreck expeditions, and exploring the many WWII wrecks in the Gulf of Thailand and the South China Sea. David regularly leads expeditions to dive the many Japanese ‘Maru’ shipwrecks sunk in WWII and other wrecks scattering the gulf and searching for new wrecks on deep trimix CCR dives, and he found many new shipwrecks around Thailand. David is also fluent in Thai and as an experienced cave diver and head of the technical expedition team 'S.E.A. Explorers' he carries out cave exploration expeditions and surveying caves around Thailand, working with Thai officials and universities.

Qualifications:

NAUI Qualifications

PSAI Instrutor Qualifications

Degree Qualifications:

• B.Sc. (Hons) Environmental Biology

Teaching Qualifications:

• ProTec Master Instructor #15094
• ProTec TecRec TEC Deep Instructor #15094
• ProTec TecRec TEC Deep Tri-mix Instructor #15094
• ProTec TecRec TRI-Mix Gas Blender Instructor #15094
• ProTec Technical Sidemount Instructor #15094
• ProTec Drysuir diver Instructor #15094

• PSAI Advanced Wreck Instructor I-3059
• PSAI Poseidon MKVI Instructor  I-3059
• PSAI Inspiration/Evolution CCR Instructor  I-3059
• PSAI Full Cave Instructor  I-3059
• PSAI Advanced Nitrox instructor  I-3059
• PSAI Deco procedures instructor  I-3059
• PSAI Extended Range Instructor  I-3059
• PSAI Sidemount  I-3059
• PSAI Trimix  I-3059
• PSAI Service Technician  I-3059
• PSAI Try Scuba Now!  I-3059
• PSAI Mini-B Shallow Water Scuba I-3059
• PSAI Open Water Sport Diver  I-3059
• PSAI Nitrox Advanced Open Water Diver  I-3059
• PSAI Master Diver  I-3059
• PSAI Rescue (RAPID™)  I-3059
• PSAI Diver Dry  I-3059
• PSAI Suit Diving  I-3059
• PSAI Full Face Mask  I-3059
• PSAI Diving Advanced Buoyancy Control, Trim and Technique  I-3059
• PSAI Altitude Diving  I-3059
• PSAI Night Diving Twin Set Diving  I-3059
• PSAI Limited Visibility Diving  I-3059
• PSAI Basic Underwater Navigation  I-3059
• PSAI Advanced Underwater Navigation I-3059
• PSAI Sport Wreck Diving: Non-Penetration  I-3059
• PSAI Diver Deep Sport Diver I-3059
• PSAI Open Water Sidemount Diver  I-3059
• PSAI Boat Diving Computer I-3059
• PSAI Assisted Diving Underwater Videography I-3059
• PSAI Underwater Photography I-3059
• PSAI Ice diving Silver Status Sport Diver 5  I-3059
• PSAI Speciality Instructor Gold Status Sport Diver 8  I-3059
• PSAI Speciality Instructor Platinum Status Sport Diver 12  I-3059
• PSAI Speciality Instructor Freediving Level 1  I-3059

• NAUI Adaptive Scuba Instructor #62067
• NAUI Advanced Open Water Scuba Diver Instructor #62067
• NAUI Advanced Rescue Scuba Diver Instructor #62067
• NAUI Altitude Instructor #62067
• NAUI Assistant Instructor #62067
• NAUI Basic Life Support-CPR & First AID #62067
• NAUI CPR Health Care Provider #62067
• NAUI Deep Diver Instructor #62067
• NAUI Divemaster Crossover Instructor #62067
• NAUI Divemaster Instructor card #62067
• NAUI Diving Emergency Management Provider #62067
• NAUI Diving First AID for Professional Divers #62067
• NAUI Drysuit Diver Instructor #62067
• NAUI Emergency Oxygen for Scuba Diving Emergencies #62067
• NAUI Experienced Scuba Diver Instructor #62067
• NAUI First AID for Hazardous Marine Life Injuries #62067
• NAUI FIT Instructor #62067
• NAUI International Diver Instructor #62067
• NAUI Introduction to Scuba Instructor #62067
• NAUI Master Scuba Diver Instructor #62067
• NAUI Neurological Assesment #62067
• NAUI Night and Limited Visibilty Diver Instructor #62067
• NAUI Nitrox Diver Instructor #62067
• NAUI Open Water Scuba Diver Autonomous-ISO Level 2 Instructor #62067
• NAUI Recreational Hookah Diver Instructor #62067
• NAUI Refresher Scuba Instructor #62067
• NAUI Rescue Scuba Diver Instructor #62067
• NAUI Scuba Diver (Supervised Diver - ISO Level 1) Instructor #62067
• NAUI Search and Recovery Diver Instructor #62067
• NAUI Skin Diver Instructor #62067
• NAUI Supplied Air Snorkeling Instructor #62067
• NAUI Tandem Scuba Diver Instructor #62067
• NAUI Training Assistant Instructor #62067
• NAUI Try Scuba Diving Instructor #62067
• NAUI Underwater Archaeology Instructor #62067
• NAUI Underwater Digital Imaging Instructor #62067
• NAUI Underwater Hunting & Collecting Instructor #62067
• NAUI Underwater Naturalist Instructor #62067
• NAUI Wreck Diver (External Survey) Instructor #62067
• Real NAUI First AID instructor #62067
• BSAC Advanced Mixed Gas Instructor
• BSAC Inspiration/Evolution Instructor
• BSAC Compressor Operator
• BSAC Dry Suit Instructor
• BSAC Emergency Oxygen Provider Instructor
• BSAC Underwater Videographer Instructor
• BSAC Equipment Specialist Instructor
• BSAC Underwater Photographer Instructor
• BSAC Project Aware Instructor
• BSAC Emergency First Response (EFR) and Care for Children and AED Instructor

Diving Certifications:

• Hypoxic Trimix CCR Diver
• GUE Fundamentals Diver
• Apeks Service Technician
• GUE Fundamentals Diver
• Apeks Service Technician

www.techdivingthailand.com