Lakeside Beach State Park is a New York state park, located in western New York in the Town of Carlton in Orleans County on the shore of Lake Ontario. The park may be accessed from Route 18. The park includes over one hundred campsites with electrical hook-ups, as well as a campground store. The park, at the end of 2009, installed a popular disc golf course, which starts near the back of the park, with several of the holes playing along the Lake Ontario shoreline.