Spooky Police Sirens

For this recording, I was walking down the path by the Milwaukee River when I saw a sewage outlet as shown in the picture. I decided to crawl down there and see if I could pick up any cool sounds while putting my mics in there. I placed one inside and held the other out. While doing this, there were police sirens getting gradually louder. It sounded like they were right down the street at one point. The sounds of crickets and birds chirping can also be heard in the background. With my left mic in the tunnel, it created a sort of spooky wind noise to accompany the sirens. Check it out here