I was thinking that might be another pond that's a hike up off the notorious Clinton Road. Clinton Road is off rte 23 up at the end of Green Pond Road, which connects to rte 80. That road is in Weird NJ website as a haunted road. All kinds of stories about it. There's a nice running stream that has a little waterfall with centuries old eroded rocks in it; nice place to take a dip in the hot summer. Across the road from that is a place we used to call "washing machine lake. There's a small bridge that goes under the road and the stream drops off 50-60' into a basin. We went down there once and realized a lot of people had dropped stuff off that bridge into it, including a washing machine
Right next to it is a jumping off place that's pretty dangerous. I think they chase people out of there these days. All kinds of legends of ghost cars and evil murderous hillbillys up that way
Another cool place is in Montville off Boonton Road, a little hike and you come to Tripod Rock, a massive boulder that sits on top of three smaller rocks. They think it was placed there by glaciers. You can crawl under it if you dare. You could see the Twin Towers from that hike before 2001.