This is an “environmentally-conscious public park space around the Gowanus Canal” called Sponge Park that comes from the Gowanus Canal Conservancy and is designed by dlandstudio. There will be a presentation about it on Monday, April 21 at 6:30PM at PS 58, which is in Carroll Gardens at 330 Smith Street at the corner of Carroll. Meanwhile, this is the view of the esplanade from 3rd Street looking North. A release from the Conservancy says “this ‘smart park’ is being designed to be beautiful while it also will reduce the CSO problem.” The current approximate view of the same area is below. (The big Toll Brothers development would be on the opposite bank of the canal.) The land involved is currently a Verizon parking lot and the “Gowanus Village” property owned by developer Shaya Boymelgreen that has been put back on the market for $20 million.