REEF uses a hierarchical 8-digit code system for survey site locations. Each geographic area has its own set of codes. When completing a survey, you need to know the complete 8-digit code for the site you surveyed.

If the site that you surveyed is not currently on our list, then please email to request a new code to be assigned. Please provide the site name, general location, and ideally the latitude and longitude.

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See a list of all locations within this region
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Region: CIP
Zone: Gulf of Thailand and South China Sea (E. Thailand, Cambodia, and Vietnam)

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ZoneZone Code listGeographic ReportNameHave Coordinates?
6201Zone Code listGeographic ReportEastern Thailand
620101Zone Code listGeographic ReportNarathiwat, Pattani, Songkhla, Nakhon Si Thammarat
620102Zone Code listGeographic ReportSurat Thani (incl. Koh Samui and Koh Tao)
62010201Geographic ReportTwin Peaks (Koh Tao)No
62010202Geographic ReportJapanese Gardens (Koh Tao)Yes
62010203Geographic ReportJunkyard Reef / Maehaad Reef (Koh Tao)No
62010204Geographic ReportMango Bay (Koh Tao)Yes
62010205Geographic ReportAow Leuk (Koh Tao)Yes
62010206Geographic ReportShark Bay (Koh Tao)Yes
62010207Geographic ReportTanote Bay (Koh Tao)Yes
62010208Geographic ReportHin Wong Bay (Koh Tao)Yes
620103Zone Code listGeographic ReportChumphon
620104Zone Code listGeographic ReportPrachuap Khiri Khan, Phetchaburi
620105Zone Code listGeographic ReportSamut Songkhram - Chachoengsao
620106Zone Code listGeographic ReportChonburi (incl. Pattaya and Sattahip area)
620107Zone Code listGeographic ReportRayong Province
62010701Geographic ReportAlhambra Rock / Hin Alhambra WestYes
62010702Geographic ReportAlhambra Rock / Hin Alhambra EastYes
620108Zone Code listGeographic ReportChanthaburi Province
620109Zone Code listGeographic ReportTrat Province (incl. Koh Chang)
6202Zone Code listGeographic ReportCambodia
6203Zone Code listGeographic ReportVietnam
620301Zone Code listGeographic ReportNha Trang Bay Marine Protected Area
62030101Geographic ReportFisherman's BightYes
62030102Geographic ReportSmall RockYes