Lying on a peninsula that juts out from the southern shore, the park takes full advantage of its surrounding waters, including placing its campground directly on the lake. There is private development on other parts of the lake. Thankfully, it has not gotten out of hand, and although you can see so   from trails.com  

- Delta Lake State Park is located in the Central Travel Region of New York jutting out into the waters of the Delta Reservoir. The land is wooded yet flat offering a very pleasant location for picnickers, boaters, anglers, campers and those who enjoy winter sports.   from wildernet.com