diff --git a/docs/ecolyo/project_architecture/doctypes.md b/docs/ecolyo/project_architecture/doctypes.md
index 8cc7700a73c8234175010eab5fb4ae9e0d0eb470..ecd2c8e402ae7e98b1ba598dc9e160793b41f28f 100644
--- a/docs/ecolyo/project_architecture/doctypes.md
+++ b/docs/ecolyo/project_architecture/doctypes.md
@@ -425,6 +425,24 @@ This doctype is used to store all quiz.
   }
 ```
 
+## Exploration
+
+### Description
+
+This doctype is used to store all explorations.
+
+### Doctype
+
+**`com.grandlyon.ecolyo.exploration`**
+
+### Structure
+
+| Field       | Type                 | Description                                                                                                      |
+| ----------- | -------------------- | ---------------------------------------------------------------------------------------------------------------- |
+| \_id        | string               | exploration id - respect the format _EXPLORATION00X_                                                             |
+| state       | UserExplorationState | State of the exploration<br><br>UserExplorationState enum<br>- _UNLOCKED = 0_<br>- _ONGOING = 1_<br>- _DONE = 2_ |
+| description | string               | description of the exploration                                                                                   |
+
 ## Duel
 
 ### Description