diff --git a/schemas/lake.py b/schemas/lake.py
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+++ b/schemas/lake.py
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+from pydantic import BaseModel, Field
+
+# Base schema
+class LakeBase(BaseModel):
+    name: str = Field(..., description="Name of the lake")
+    location: str = Field(..., description="Location of the lake")
+    description: str | None = Field(None, description="Description of the lake")
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "name": "Lake Tahoe",
+                "location": "California/Nevada, USA",
+                "description": "A beautiful alpine lake on the California-Nevada border."
+            }
+        }
+
+# Schema for creating a new Lake
+class LakeCreate(LakeBase):
+    pass
+
+# Schema for Lake responses
+class Lake(LakeBase):
+    id: int
+    name: str = Field(..., description="Name of the lake")
+    location: str = Field(..., description="Location of the lake")
+    description: str | None = Field(None, description="Description of the lake")
+
+    class Config:
+        orm_mode = True
+        schema_extra = {
+            "example": {
+                "id": 1,
+                "name": "Lake Tahoe",
+                "location": "California/Nevada, USA",
+                "description": "A beautiful alpine lake on the California-Nevada border."
+            }
+        }
+```
+
+This code defines three Pydantic models for the Lake entity:
+
+1. `LakeBase`: A base model that defines the common fields for `name`, `location`, and `description`.
+2. `LakeCreate`: A model that inherits from `LakeBase` and is used for creating a new Lake instance.
+3. `Lake`: A model that inherits from `LakeBase` and includes an `id` field. This model is used for representing Lake instances in API responses.
+
+The `LakeBase` model includes example values in its `Config` class, which can be used for documentation purposes.
+
+The `Lake` model sets `orm_mode=True` in its `Config` class, which allows it to work with ORMs (Object-Relational Mappers) and handle reading data from a database. It also includes an example value for the `id` field.
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