Toronto

It's interesting that they're using a natural (non chlorine) filtration system that just needs time to be calibrated and balance out and the water will start looking normal.

However, I still think this is a poorly designed park. Not because of the heart, I like the heart, I just don't understand why you fill the entire centre of the park with an area that people can't walk, and push everyone and the tiny scraps of greenspace right next to the road. Make the heart a creek instead of a pond, with cute little bridges over it, and now you can have a nice area in the center that's slightly separated from traffic with more room for greenspace.