There is no swamp in Tobago called Kilgwyn Swamp. It's possible the name is misspelled or refers to a lesser-known location.

To help you find what you're looking for, could you provide:

* Any additional details about the swamp? (e.g., near a specific town, known for specific wildlife, etc.)

* The context of your search? (e.g., are you planning a trip, researching wildlife, etc.)

With more information, I can better assist you in finding the location you're interested in.