Hopefully you read my article from earlier this week on the Seattle Police Department's "Port Security Mesh Network". I don't know about you, but I wouldn't consider 4th and Cherry the port. If you ask me, it's quite squarely in the middle of downtown Seattle, you can only see a small sliver of the waterfront from there. But there is clearly a camera there. I also spotted a camera on 4th and Columbia.
Here is a map of the location of the downtown camera: