Cayuga Lake is the longest of western New York's Finger Lakes, and is the second largest in surface area (slightly smaller than Seneca Lake) and volume. It is just under 40 miles long. Its average width is 1.7 miles, and it is 3.5 miles wide at its widest point, near Aurora. It is approximately 435 feet deep at its deepest point.
The lake has one small island, Frontenac Island, which is located near Union Springs. It is one of only two islands in all of the Finger Lakes. Ithaca, New York, site of Cornell University and Ithaca College, is located at the southern end of Cayuga Lake. Cornell's official school song makes reference to its position "Far Above Cayuga's Waters". There are numerous villages and settlements along the east shore of Cayuga Lake, including Myers, King Ferry, Aurora, Levanna, Union Springs, and Cayuga. Along the west shore of the lake are Sheldrake, Poplar Beach, and Canoga.