Final answer:
The answer to this riddle is a pothole.
Step-by-step explanation:
This question is a riddle and does not pertain to any specific subject. It is meant to be a playful challenge that requires a bit of logical thinking. The answer to the riddle is a hole that grows up in Seattle and doesn't know how to swim is a pothole. Potholes can grow larger over time and they cannot swim because they are not living creatures.