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 zonecode@REEF.org 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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Region: CIP
Zone: Deep South Palau (Sonsorol, Puna Anna, Merir, Helen Reef)

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ZoneZone Code listGeographic ReportNameHave Coordinates?
83020001Geographic ReportNorth Helen Reef (inside lagoon)Yes
83020002Geographic ReportSouth Wall Helen Reef (outside lagoon)Yes
83020003Geographic ReportMerirNo
83020004Geographic ReportHelen Reef West Wall (outside lagoon)Yes
83020005Geographic ReportHelen Reef ChannelYes
83020006Geographic ReportHelen Reef West (inside lagoon)Yes