To find it, you'll need to:
1. Consult your owner's manual: This is the most reliable source for the exact location and any specific instructions.
2. Look underneath the car: Locate the oil pan (a large, relatively flat metal part at the bottom of the engine). The drain plug is usually a bolt near the bottom center or slightly to one side. It's often a slightly larger bolt than others nearby.
3. Search online: A Google image search for "[your Camaro year and engine] oil drain plug" will often show pictures.
Caution: Before attempting any work under your car, ensure it's securely supported on jack stands and not just a jack. Oil is hot when the engine's running, so let it cool completely before changing it. Be prepared to catch the old oil in a suitable container.