I was recently on vacation in NY. While enjoying my day as a tourist, I spent one evening feverishly researching online, trying to find this fountain. I had seen it on a previous trip and wanted to see it again. I tried googling fountain, waterfall, water tunnel, best fountains ever and finally found it under waterfall fountain. It’s a mini oasis in Manhattan, where you hear the water falling and experience walking through the running water. You can find it on 49th st, between 6th and 7th avenue. It’s a breath of fresh water!