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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See a list of all locations within this region
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Region: IORS
Zone: Indian Ocean Islands
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| Zone | Zone Code list | Geographic Report | Name | Have Coordinates? |
|---|---|---|---|---|
| 61 | Zone Code list | Geographic Report | Madagascar | |
| 6100 | Zone Code list | Geographic Report | East Side Madagascar | |
| 61000001 | Geographic Report | Nosy Faho | Yes | |
| 6101 | Zone Code list | Geographic Report | Ile Sainte Marie | |
| 61010001 | Geographic Report | Albrand (Ile Sainte Marie) | Yes | |
| 61010002 | Geographic Report | Rocher Des Baleiniers (Ile Sainte Marie) | Yes | |
| 6102 | Zone Code list | Geographic Report | West Side Madagascar | |
| 61020001 | Geographic Report | Andavadoaka 1 | Yes | |
| 61020002 | Geographic Report | Andavadoaka 2 | Yes | |
| 61020003 | Geographic Report | Andavadoaka 3 | Yes | |
| 61020004 | Geographic Report | Andavadoaka 4 | Yes | |
| 61020005 | Geographic Report | Opwall (Nosy Be) | Yes | |
| 62 | Zone Code list | Geographic Report | Comoro Islands and other Scattered Islands in the IO | |
| 63 | Zone Code list | Geographic Report | Reunion, Mauritius, Rodrigues | |
| 6301 | Zone Code list | Geographic Report | Reunion | |
| 6302 | Zone Code list | Geographic Report | Mauritius | |
| 63020001 | Geographic Report | Merville Reef (Grand Baie) | Yes | |
| 63020002 | Geographic Report | Confetti Bay (Coin de Mire) | Yes | |
| 6303 | Zone Code list | Geographic Report | Rodrigues | |
| 63030001 | Geographic Report | Port Mathurin, Rodrigues | Yes | |
| 64 | Zone Code list | Geographic Report | Chagos Archipelago | |
| 6401 | Zone Code list | Geographic Report | Diego Garcia | |
| 64010001 | Geographic Report | RZ1 | Yes | |
| 64010002 | Geographic Report | A1 | Yes | |
| 64010003 | Geographic Report | RZ2 | Yes | |
| 64010004 | Geographic Report | LN2 | Yes | |
| 64010005 | Geographic Report | C1 | Yes | |
| 64010006 | Geographic Report | LS1 | Yes | |
| 64010007 | Geographic Report | LSE | Yes | |
| 64010008 | Geographic Report | RBN | Yes | |
| 64010009 | Geographic Report | CAP | Yes | |
| 64010011 | Geographic Report | SP | Yes | |
| 64010012 | Geographic Report | LW | Yes | |
| 65 | Zone Code list | Geographic Report | Seychelles | |
| 6501 | Zone Code list | Geographic Report | Inner Seychelles | |
| 650101 | Zone Code list | Geographic Report | Mahe (Grand Anse Mahe) | |
| 65010101 | Geographic Report | Joker Reef | Yes | |
| 65010102 | Geographic Report | Beau Vallon Reef | Yes | |
| 65010103 | Geographic Report | Twin Barges Wreck | Yes | |
| 65010104 | Geographic Report | Dredger Wreck | Yes | |
| 65010105 | Geographic Report | Baie Ternay Marine Park | Yes | |
| 65010106 | Geographic Report | Matoopa Point / Matoupe | Yes | |
| 65010107 | Geographic Report | Fishermans Cove Reef | Yes | |
| 65010108 | Geographic Report | L'ilot Island | Yes | |
| 65010109 | Geographic Report | Vacoa Reef | No | |
| 65010110 | Geographic Report | Cerf Island Marine Park | Yes | |
| 65010111 | Geographic Report | L' Habitation (Cerf Island) | Yes | |
| 65010112 | Geographic Report | Grouper Point | Yes | |
| 65010113 | Geographic Report | Aquarium (Mahe) | No | |
| 65010114 | Geographic Report | Scala Reef | No | |
| 65010115 | Geographic Report | Ray's Point | No | |
| 65010116 | Geographic Report | Chuckles | No | |
| 65010117 | Geographic Report | Brissare | No | |
| 65010118 | Geographic Report | Whale Rock (Mahe Island) | No | |
| 65010119 | Geographic Report | Dragon Teeth | No | |
| 65010120 | Geographic Report | Conception North | No | |
| 65010121 | Geographic Report | Conception South | Yes | |
| 65010122 | Geographic Report | Moyenne Island | Yes | |
| 65010123 | Geographic Report | Shark Bank | Yes | |
| 65010124 | Geographic Report | Alice in Wonderland | Yes | |
| 65010125 | Geographic Report | Intendance Rock | Yes | |
| 65010126 | Geographic Report | Anse Forbans | Yes | |
| 65010127 | Geographic Report | Port Launay | Yes | |
| 65010128 | Geographic Report | Shark Point | Yes | |
| 65010129 | Geographic Report | Napolean Inn | Yes | |
| 65010130 | Geographic Report | Fairy Island / North Anse Royal Beach | Yes | |
| 65010131 | Geographic Report | Bay Ternay Central | Yes | |
| 65010132 | Geographic Report | Bay Ternay Northwest | Yes | |
| 65010133 | Geographic Report | Lighthouse | Yes | |
| 65010134 | Geographic Report | Port Launay West | Yes | |
| 650102 | Zone Code list | Geographic Report | Praslin and nearby Islands | |
| 65010201 | Geographic Report | Shark Rock | No | |
| 65010202 | Geographic Report | Caiman Rock | No | |
| 65010203 | Geographic Report | Criminal Rock | No | |
| 65010204 | Geographic Report | Albatros | No | |
| 65010205 | Geographic Report | Booby Rock | No | |
| 65010206 | Geographic Report | Whale Rock (Praslin Island) | No | |
| 65010207 | Geographic Report | Channel Rock | No | |
| 65010208 | Geographic Report | Low Channel Rock | No | |
| 65010209 | Geographic Report | Small Sister | No | |
| 65010210 | Geographic Report | West Sister Bank | No | |
| 65010211 | Geographic Report | Coral Garden | No | |
| 65010212 | Geographic Report | Anse Lazio (Praslin Island) | Yes | |
| 65010213 | Geographic Report | Red Point (Curieuse) | Yes | |
| 65010214 | Geographic Report | Coral Garden (Curieuse) | Yes | |
| 65010215 | Geographic Report | Ave Maria | Yes | |
| 65010216 | Geographic Report | White Bank | Yes | |
| 65010217 | Geographic Report | Anse Severe (La Digue) | Yes | |
| 6502 | Zone Code list | Geographic Report | Outer Seychelles | |
| 65020001 | Geographic Report | Arcade (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020002 | Geographic Report | Galawa (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020003 | Geographic Report | Blue Safari House Reef (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020004 | Geographic Report | Maggicliff (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020005 | Geographic Report | Route 33 (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020006 | Geographic Report | Grouper Gangway (Alphonse Atoll - Alphonse Group) | Yes | |
| 65020007 | Geographic Report | Napoleon (St. Francois Atoll - Alphonse Group) | Yes | |
| 65020008 | Geographic Report | Trigger Hill (St. Francois Atoll - Alphonse Group) | Yes | |
| 65020009 | Geographic Report | Arina (St. Francois Atoll - Alphonse Group) | Yes | |
| 65020010 | Geographic Report | Theater (St. Francois Atoll - Alphonse Group) | Yes | |
| 65020011 | Geographic Report | Mantam North (St. Francois Atoll - Alphonse Group) | Yes |