Deep Blue Divers

Deep Blue Divers was founded at 2013. Founder & Owner is Mr. Alexandros M. Marketos. Retired Petty Officer from Navy Special Forces, after 20 years of service. He served, at Seals – Explosive Ordnance Disposal – Salvage Teams, in U.S.Navy & H.Navy from 1993 until 2013.

Deep Blue Divers has been awarded from PADI with the highest award for diving centers, “5 Star Dive Center”. Deep Blue Divers from 2013 is Member of PADI  The World Biggest diving organization with more than 6.600 dive centers and resorts in 186 countries and territories. Our dynamic and motivated team have a range of international experience. We are here to ensure you get the most out of your dives, plus provide professional training to new divers and progression for those already qualified.

Deep Blue Divers is a PADI TecRec Dive Center. We are very successful at providing high standard and highest quality of Technical Diving Courses. Right from the basic introductory level we emphasize practical knowledge, safety and practical skills. All training programs are conducted exactly according to the standards of PADI.

SCUBAPRO has recognized and award the Deep Blue Divers as  “Scubapro Educational Association” S.E.A. Dive Center. Deep Blue Divers is fully equipped with the latest technology and high quality “SCUBAPRO” diving equipment as well as authorized service for the above. We pride ourselves in keeping the diving school and diving equipment in excellent condition.

Deep Blue Divers is certified from Bureau Veritas with ISO: 9001:2015 & EN1447, that follows all international safety and training standards giving high-quality services. The Bureau Veritas SA certifies that the System of the above company has been evaluated and meets the requirements of its National Diving Standards Ν.3409/2005 και της Υ.Α. 2123/02/2006.

Safety is of paramount importance in our diving center. Prevention is the beginning of everything.

Safety is of paramount importance in our diving center. Prevention is the beginning of everything. Safety is invaluable and the safety measures taken are sometimes boring for some people. For the staff of   Deep Blue Divers, it is the rule and it is followed to the letter.

Prevention and safety are the two starting points in every one of our activities. They are the unbreakable rules of our schools and we try to pass them on to our divers who take part in entertainment dives.

Always remember ! It is better to waste a minute of your life in safety procedures than waste your life in a minute. Tomorrow’s dive is the reward that you dived safely today.


  • PADI EUROPE, MIDDLE EAST & AFRICA – RETAILER & RESORTS ASSOCIATIONS “This certificate Recognises DEEP BLUE DIVERS s23817 for the following Achievement Registration as a PADI 5* DIVE CENTER

  • SCUBAPRO international diving club – S.E.A. Dive Center (Scubapro Education Association) “Deep Blue Divers is committed to providing pleasurable quality diving experiences and is engaged in a partnership with SCUBAPRO to ensure our high quality standards are constantly met”
  • ANDI Deep Blue Divers Diving Center, American Nitrox Divers International Certification No.: GR1072
  • EXCELLENCE AWARD to Deep Blue Divers s23817 “For outstanding customer service and professionalism in PADI instructions”

  • Ministry of Shipping and the Aegean, the Headquarters of the Coast Guard and the Central Port Authority of Igoumenitsa, Dive School Register No: 306 – Protocol No: 2131.3/2762/2018

  • ISO 9001:2015 BUREAU VERITAS  Certif.No.: GR001071

  • Bureau Veritas ΕΝ 14467 Services of Organized Guided Diving Cert. No.: GR001431/A

  • Bureau Veritas EN 14467 Maintenance of systems of producing Divers’ Respiration Gases according to the technical specifications of the manufacturer Cert. No.: GR001430

  • Bureau Veritas EN 14467 Renting Services of Diving equipment. Cert. No: GR001431/B


Our specialists are at the heart of Deep Blue Divers.

Alexandros M. Marketos

Founder & Owner of Deep Blue Divers

IDC Staff Instructor


– IDC Staff Instructor (IDCS-255387)

– Tec Rec Instructor (IDCS-255387)

– Tec Gas Blender Instructor (IDCS-255387)

– EMERGENCY FIRST RESPONSE   Instructor (Cert.No.: 255387)


– EXCELLENCE AWARD to Alexandros M. Marketos IDCS 255387 “For outstanding customer service and professionalism in PADI instructions  17th January 2020”

– EXCELLENCE AWARD to Alexandros M. Marketos IDCS 255387 “For outstanding customer service and professionalism in PADI instructions 29th August 2018”

– ELITE Instructor   2014 – 2015 – 2016 – 2017 – 2018 – 2019

– Membership Achievement Award


  • Deep Diver
  • Wreck Diver
  • Night Diver
  • Full Face Mask
  • Diver Propulsion Vehicle
  • Self-Reliant Diver
  • Sidemount
  • Enriched Air
  • Search & Recovery Diver
  • Adaptive Support Diver
  • Altitude Diver
  • Cavern Diver
  • Public Safety Diver
  • Navigator Diver
  • Dry Suit Diver
  • Multilevel Diver
  • Drift Diver
  • Dive Against Derbis
  • Peak Performance Buoyancy
  • Emergency Oxygen Provider
  • Boat Diver
  • Ice Diver
  • Digital Underwater Photographer
  • Underwater Videographer
  • Equipment Specialist
  • Delayed Surface Marker Buoy
  • Underwater Naturalist
  • Project Aware Specialist
  • Distinctive Diver
  • Coral Reef Conservation Diver
  • Fish Identification


– Tec Trimix Diver (Cert.No.: 255387)

– ANDI INTERNACIONAL   Dive Medic Instructor (Cert.No.: GR-20237)

– ANDI Instructor Open Water L-2 (Cert.No.: GR-20237)

– PROFESSIONAL DIVER & SUPERVISOR (MINISTRY of SHIPPING & AEGEAN Fold.No.: 511.8-4/13 Pr.No.: 20641 Cert.No.: 09)

– BUREAU VERITAS (SAS-UK Branch Management System)

– PADI Business Academy

– PADI Business Management Program 2019

– SCUBAPRO   Technical Service

– PSI PCI   Visual Cylinder Inspection (Inspector No.: 26123)

– ENVIRONMENTAL  PROTECTION TECHNIQUE SA   Pollution Response (Cert.No.: 1404034)

– TRITECH INTERNATIONAL SYSTEM   Operator (MDV SeaFox System Cert.No.: HN15/11.04.00)

– TRITECH INTERNATIONAL LIMITED   Operator Diver (Short Range Diver Detection Sonar Cert.No.: HN09/15.06.00)

– FRONIUS   Underwater Welding

– BROCO   Underwater Cutting

– OTS (OCEAN TECHNOLOGY SYSTEM)   Underwater Communication & Wireless Buddy Phone System

– MARINER UNDERWATER ELECTRONICS    Video Inspection System (Mar.Mod.: 1300) & Underwater Communication

– STANLEY   Underwater Hydraulic Tools

– U.S.NAVY   Salvage Diver & Deep Diver (USNS MOHAWK Diver No.: 02016/29-08-03)

– U.S.NAVY EXPLOSIVE ORDANCE DISPOSAL   “Technician” (EODMU8 No.: 02016/14-02-03)

– KIRBY MORGAN Dive Systems (Cert.No.: T-07023)

– LIFEGUARD (ΠΔ23/2000 License.No: 2119.2/03/21-7-03 Cert.No.: 252)

– N/K S.E.A. training S.A.P.   Operator (Cruiser Unorthodox Warfare Speedboats HN02016/25-07-05 )

– SPEEDBOAT OPERATOR   (Hellenic Coastguard Licence No.: 1899)


– OWNER & Founder of YAM Underwater Professional Service Team (MINISTRY of SHIPPING & AEGEAN Fold.No.: 511.8-2/13 Pr.No.: 26159 Cert.No.: 04)


  • Construction & Maintenance of Port Istallation
  • Underwater Construction Project
  • Inspection & Measurement of Underwater Construction
  • Underwater Hull & Underwater Construction Cleaning
  • Construction & Installation of Moorings
  • Installation & Maintenance of Underwater Cables
  • Construction, Installation & Maintenance of Underwater Pipelines
  • Underwater Search, Inspection & Survey
  • Search & Recovery of Objects from High Depths
  • Underwater Repair & Maintenance of Ships
  • Underwater Ship Inspection
  • Underwater Measurement of Metal Thickness for Hull & Pipelines
  • Recovery Wrecks SALVAGE
  • Underwater Welding & Cutting
  • Fusion Joining of Plastic Pipes
  • Underwater – Surface Search, Detection  & Rescue of Missing Person
  • Search & Rescue
  • Supply & Installation of Port Fenders,  Pneumatic Fenders, Floating Fenders and Fenders for Piers
  • Marine Pollution Response


– Professional Soldier for 20 years (1993-2013) at H.N. – U.S.Navy at Seals-E.O.D.-Salvage Team

– Underwater Professional Service (Worldwide Commercial Dives) from 1994

– PADI Instructor from 2013

Pernille Tilma Tonnesen

Dive Master