diff --git a/crates/bevy_landmass/README.md b/crates/bevy_landmass/README.md
index b66d75d..7a8ee02 100644
--- a/crates/bevy_landmass/README.md
+++ b/crates/bevy_landmass/README.md
@@ -22,6 +22,18 @@ Note the `Archipelago` can be created later, even if the agents/islands already
 have an `ArchipelagoRef` to it. Agents/islands will be added once the
 `Archipelago` exists.
 
+## ⚠️ Important: Mesh Orientation and Normals
+
+When converting a mesh to a `NavigationMesh`, **ensure that**:
+- The mesh is defined in **clockwise** vertex order.
+- Normals are facing **inward** (towards the interior of the mesh).
+
+#### Why does this matter?
+- Most 3D editors default to **counter-clockwise** mesh orientation (normals facing outward).
+- Incorrect orientation can cause navigation algorithms to fail (e.g., agents may get stuck or choose invalid paths).
+
+#### How to Check/Fix Orientation?
+- **Blender**: Enable normal display (`Overlay -> Normals`). Red normals indicate inward-facing direction.
 ## Example
 
 ```rust
diff --git a/crates/bevy_landmass/src/nav_mesh.rs b/crates/bevy_landmass/src/nav_mesh.rs
index 17bc346..3f44adb 100644
--- a/crates/bevy_landmass/src/nav_mesh.rs
+++ b/crates/bevy_landmass/src/nav_mesh.rs
@@ -20,6 +20,10 @@ pub enum ConvertMeshError {
 /// Converts a Bevy Mesh to a landmass NavigationMesh. This is done naively -
 /// each triangle forms a single polygon in the navigation mesh, which can cause
 /// strange paths to form (agents may take turns inside if wide open regions).
+///
+/// ## Note: The input mesh must be in **clockwise** orientation,
+/// ## with normals facing **inward** (towards the interior of the mesh).
+///
 /// This function is provided as a convenience, and a better method for
 /// generating navigation meshes should be used.
 pub fn bevy_mesh_to_landmass_nav_mesh<CS: CoordinateSystem>(