Extended Range Wreck Diving

Extended Range Wreck (XR Wreck)

Who's Afraid of Overhead?

The Extended Range Wreck Diving course (formerly known as Advanced Wreck Diving) will teach you how to plan and perform limited penetration dives within the light zone of a wreck to a maximum depth of 40m. You will learn overhead buoyancy and propulsion skills, use of navigation lines and how to react to the unique hazards present in overhead environments. The course can be completed wearing a single-cylinder with either a pony cylinder or H/Y valve, sidemount or a twin set configuration.
All our courses are conducted by experienced technical diving instructors and instructor trainers. Our facilities are located 50m from the ocean, where we do our initial confined water training. Your open water training dives will be conducted from our dive boat on the many dive sites around Koh Tao.

  • Who can take this course?

    • Minimum age 18 years
    • Deep diving certified
    • Enriched air nitrox diver certified
    • Wreck diving certified
    • 24 or more dives
    • Have a current medical examamination for scuba diving and signed medical questionnaire
    • by a licensed medical practitioner not older than 1 year old


  • Duration

    • 4 days
  • Price includes

    • 4 dives
    • Lifetime (Diamond) Online & Offline access to the digital training materials
    • Equipment rental (excluding required equipment)
    • All gases
    • Digital certification
  • Course content

    • Wreck diving procedures
    • Equipment configuration workshop
    • Confined water training
    • 4 OHE training dives
  • Required equipment

    • 2 x Mask
    • 2 x fins
    • wetnotes/slates
    • 2 x dive computer (can be rented for 1.000 THB / day)
  • Online training

    Download the SSI appAll our XR courses include DIAMOND version

    • Lifetime Online & Offline access to the digital training materials
    • 2-year access to the Digital Divelog on the DiveSSI app
    • Downloadable to 3 different devicesDownload the SSI app

    Read more about SSI online training


From Blue to Black and Back!

Give us a shout

Office hours 9:00-18.00

Mob. +66860699244 (Whatsapp) 

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Photo credits to Fat Fish Movies, Anna Kekkonen, Irena Stangierska, Fredrik Lindblad and Mikko Paasi

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TAT license #34/01497