Elizabeth Lake is a 638-acre through-flow lake located in the Village of Twin Lakes, with portions extending into McHenry County, Illinois. The lake connects to the upstream Lake Mary via a narrow channel and drains southward to the Nippersink Creek system. With a maximum depth of 32 feet and mean depth of 11 feet, Elizabeth Lake offers paddlers a substantial area to explore while maintaining relatively protected conditions. Access points include the Lake Elizabeth Marina boat launch operated by the Village of Twin Lakes, Musial Road public access with a gravel launch, and the "Mad Dan's" site at the southeastern corner which opened in 2007. The lake's 5.4-mile shoreline features varied terrain, with approximately 60 percent developed residential areas and extensive wetland systems along the southern, southwestern, and northwestern shores.

Paddlers should be aware of several considerations. The lake supports motorized boating including water skiing, though slow-no-wake restrictions apply within 200 feet of shore and during high water conditions (above elevation 794.5 feet NGVD-29). Shallow areas exist, particularly around the buoyed rock bars at the northwest end, a large shallow rock bar on the west side, and submerged trestle remains crossing the south end. Water depths of five feet or less cover approximately 15 percent of the lake area.

The lake's southern reaches provide exceptional wildlife viewing opportunities, particularly in the Elizabeth Lake Nature Preserve managed by McHenry County Conservation District. This 341-acre preserve features a graminoid bog and supports numerous threatened and endangered bird species including black terns, American bitterns, and great egrets. The wetland complex creates ideal habitat for waterfowl and wading birds, especially during spring and fall migrations.

Water quality is generally good with clear conditions and diverse native aquatic plant communities, though Eurasian water milfoil is present. Paddlers should inspect and clean watercraft before and after use to prevent spreading invasive species between water bodies.