Mermet Lake Nature Preserve, Illinois: Best Things to Do – Top Picks

Did you know that Mermet Lake was originally a cypress swamp before being transformed into a 452-hectare (1,117-acre) wildlife area in 1962? This hidden gem in Southern Illinois offers some of the most diverse bird watching in the Midwest, with over 250 species recorded including the majestic bald eagle. Located in Massac County near Metropolis, this pristine nature preserve combines the tranquility of a cypress-studded lake with rich biodiversity that attracts nature enthusiasts from across the country.

Getting There & Planning Your Journey

Mermet Lake Nature Preserve is conveniently located in Massac County, Illinois, approximately 16 km (10 miles) north of Metropolis. The preserve is easily accessible by car, with well-maintained roads leading to the entrance.

Closest Airports

The nearest commercial airports to Mermet Lake are:

• Barkley Regional Airport (PAH) in Paducah, Kentucky – 40 km (25 miles)
• Cape Girardeau Regional Airport (CGI) – 85 km (53 miles)
• Evansville Regional Airport (EVV) – 145 km (90 miles)
• Nashville International Airport (BNA) – 235 km (146 miles)

Driving Directions

From Metropolis: Take Highway 45 north for about 13 km (8 miles). Turn left onto Grinnell Road, cross the railroad tracks, then take the first left onto Mermet Lake Road. The preserve entrance will be on your right.

From Marion: Take I-57 southbound and merge onto I-24 South. Take Exit 27 (New Columbia/Big Bay) and turn right on Big Bay Road. Turn right on New Columbia Road, drive through New Columbia and turn left at Teague Hill Road. At Highway 45, turn right, then make a quick left across the railroad tracks on Grinnell Road. Take the first left after crossing the tracks onto Mermet Lake Road.

Best Time to Visit & Weather Tips

Mermet Lake Nature Preserve offers unique experiences throughout the year, but certain seasons stand out depending on your interests.

Recommended Seasons

• Spring (April-May): Ideal for bird watching during migration, wildflower viewing, and fishing. Temperatures range from 15-26°C (60-80°F).
• Fall (September-October): Perfect for scenic drives, photography, and hiking when fall colors peak. Temperatures range from 10-24°C (50-75°F).
• Winter (December-February): Excellent for bald eagle watching and winter bird photography. Temperatures range from -4 to 7°C (25-45°F).

Seasons to Avoid

• Summer (June-August): While still visitable, summer brings hot, humid conditions with temperatures often exceeding 32°C (90°F). Mosquitoes and ticks are also more prevalent.
• Waterfowl Hunting Season: The lake is closed to fishing and other recreational activities during waterfowl hunting season (typically mid-November through January, check current dates before visiting).

For wildlife enthusiasts, early mornings and late afternoons offer the best opportunities for spotting animals and birds. Photographers will appreciate the golden hour lighting during these times as well. If you’re planning to fish, spring and fall typically provide the best catches, while winter is prime time for spotting bald eagles that migrate to the area.

Getting Around Locally

Mermet Lake Nature Preserve features a 10 km (6-mile) one-way gravel road that loops around the lake, making it easy to explore the area. The speed limit is 15 mph, and the road is suitable for all vehicles under normal weather conditions.

Transportation Options

• Driving: The most convenient way to explore the preserve. The gravel road provides access to fishing spots, hiking trails, and wildlife viewing areas.
• Cycling: The loop road is ideal for gravel, hybrid, or mountain bikes. Road bikes are not recommended due to the gravel surface.
• Walking/Hiking: The road is also suitable for walking or running, offering scenic views of the lake and surrounding hardwoods.
• Boating: Four boat launches are available for accessing the lake. Motors up to 10 horsepower are permitted.
• Kayaking/Canoeing: Perfect for exploring the cypress-studded waters and quiet coves.

Note that the preserve roads may not be accessible during wintry conditions, and the entire area is closed to recreational activities during waterfowl hunting season. Always check current conditions before visiting.

Where to Stay

While Mermet Lake Nature Preserve is a day-use only facility with no overnight camping allowed, there are several accommodation options in the surrounding area.

Nearby Lodging Options

• Fort Massac State Park: Located 16 km (10 miles) south in Metropolis, this park offers both electric and non-electric camping sites. Facilities include showers, restrooms, and picnic areas.
• Metropolis Hotels: The nearby city of Metropolis offers several hotel options, including national chains and local establishments. Most are within a 20-minute drive of Mermet Lake.
• Main Brothers’ Campground: Located in Karnak, approximately 13 km (8 miles) from Mermet Lake, this family-friendly campground provides a rustic experience.
• Cabin Rentals: Several private cabins are available for rent in the surrounding area, particularly near the Shawnee National Forest.
• Paducah Accommodations: Just across the Ohio River in Kentucky, Paducah offers additional lodging options about 30 minutes from Mermet Lake.

For the best experience, book accommodations in advance, especially during peak seasons (spring and fall) when visitors flock to Southern Illinois to enjoy the natural beauty of the region.

Dining & Local Cuisine

While there are no dining facilities within Mermet Lake Nature Preserve itself, the surrounding communities offer a variety of dining options featuring Southern Illinois cuisine.

Nearby Dining Options

• Metropolis (16 km/10 miles south): Home to several dining establishments including Fat Edd’s Roadhouse (known for steaks and burgers), Cordavino’s Italian Dining, Bill’s BBQ (featuring Southern-style barbecue), Yesterday’s, and Super City Bar and Grill.
• Paducah, KY (32 km/20 miles southeast): Offers a wider range of dining options, from casual eateries to fine dining restaurants.
• Karnak (13 km/8 miles north): Features smaller, local establishments serving home-style cooking.

Local Specialties

When dining in Southern Illinois, be sure to try these regional specialties:

• Burgoo: A thick stew made with multiple meats and vegetables
• Southern-style BBQ: Featuring slow-cooked pork and beef with distinctive regional sauces
• Freshwater fish: Local restaurants often serve catfish, crappie, and bass from nearby waters
• Pawpaw fruit: A native fruit that appears in seasonal desserts
• Persimmon pudding: A traditional dessert made from wild persimmons

For visitors planning a full day at Mermet Lake, bringing a picnic lunch is recommended as there are no food vendors within the preserve. Several picnic areas with tables are available throughout the site.

Attractions, Sightseeing & Activities

Mermet Lake Nature Preserve offers a diverse range of activities for outdoor enthusiasts, with something to appeal to visitors of all ages and interests.

Water Activities

• Fishing: The 452-acre lake is known for excellent fishing opportunities. Common catches include largemouth bass, crappie, bluegill, sunfish, channel catfish, buffalo, and carp. Four boat launches provide easy access.
• Boating: Boats with motors up to 10 horsepower are permitted on the lake. The shallow waters (maximum depth of 3.7 m/12 ft) and numerous cypress stumps create a unique boating environment.
• Kayaking/Canoeing: The calm waters and interesting shoreline make Mermet Lake perfect for paddling adventures.

Land Activities

• Hiking: Two main trails include a 0.8 km (0.5-mile) interpretive trail with tree identification signage and a boardwalk through a cypress swamp, plus a 1.6 km (1-mile) nature trail.
• Wildlife Watching: The preserve is home to diverse wildlife including deer, turkey, rabbits, and numerous bird species. It’s particularly known for waterfowl, herons, egrets, and bald eagles.
• Scenic Driving: The 10 km (6-mile) gravel road around the lake offers beautiful views and wildlife spotting opportunities.
• Photography: The combination of water, cypress trees, and abundant wildlife creates endless photography opportunities.
• Hunting: During designated seasons, the preserve offers hunting for waterfowl, dove, deer, squirrel, rabbit, and quail in specific areas. (Check with Illinois DNR for current regulations and permits.)

Nearby Attractions

While Mermet Lake is a destination in itself, the surrounding area offers several complementary attractions worth exploring during your visit.

Within 15 km (10 miles)

• Mermet Springs: Located just 1.6 km (1 mile) north of Mermet Lake, this former rock quarry is now a premier scuba diving destination. It features submerged attractions including the airplane used in the movie “U.S. Marshals.”
• Cache River State Natural Area: Explore additional wetlands, including Big Cypress Access, Section 8 Woods, and the Wetlands Center around Karnak.
• Tunnel Hill State Trail: The southern terminus of this 72 km (45-mile) rail-trail is located in nearby Karnak, offering excellent biking opportunities.

Within 30 km (20 miles)

• Fort Massac State Park: Illinois’ first state park features a reconstructed fort, museum, hiking trails, picnic areas, and disc golf.
• Superman Statue and Museum: Metropolis, the “Official Home of Superman,” boasts a 4.6 m (15 ft) statue of the Man of Steel and a museum dedicated to the superhero.
• Shawnee National Forest: The northern reaches of this 113,000-hectare (280,000-acre) national forest offer hiking, camping, and scenic drives.

Museums, Cultural Spots & Festivals

The area surrounding Mermet Lake offers several cultural and historical attractions that provide context to the region’s rich heritage.

Museums & Historical Sites

• Fort Massac State Park Museum: Learn about the history of this 18th-century fort that played roles in the French and Indian War, American Revolution, and Civil War.
• Superman Museum: Located in Metropolis, this museum houses one of the world’s largest collections of Superman memorabilia.
• Metropolis History Museum: Discover the history of this river town through artifacts and exhibits.
• Paducah’s River Discovery Center: Just across the Ohio River in Kentucky, this museum explores the importance of river transportation in the region’s development.

Annual Events & Festivals

• Superman Celebration: Held annually in June in Metropolis, this four-day event attracts Superman fans from around the world.
• Fort Massac Encampment: Each October, historical reenactors recreate 18th-century life at the fort.
• Archery Competition: Mermet Lake hosts one of the largest archery competitions in the country, drawing participants from across the nation.
• Eagle Watching Events: During winter months, guided eagle watching tours and events are held in the region.

Sports, Nature & Outdoor Experiences

Mermet Lake Nature Preserve is a paradise for outdoor enthusiasts, offering a variety of activities throughout the year in a unique ecosystem that combines cypress swamps, hardwood forests, and open water.

Wildlife Watching

The preserve is renowned for its biodiversity, particularly its bird population. Bring binoculars to spot:

• Birds: Over 250 species including great blue herons, egrets, wood ducks, prothonotary warblers, and bald eagles (winter)
• Mammals: White-tailed deer, eastern cottontail rabbits, raccoons, opossums, and fox squirrels
• Reptiles: Various snake species (including the protected mud snake), turtles, and lizards
• Amphibians: Numerous frog and salamander species

Seasonal Outdoor Activities

• Spring: Bird migration watching, wildflower identification, fishing for spawning bass and crappie
• Summer: Early morning fishing, photography, scenic drives (best in early morning or evening to avoid heat)
• Fall: Hiking through colorful foliage, wildlife photography, comfortable temperatures for extended outdoor activities
• Winter: Bald eagle watching, waterfowl observation, peaceful hiking on trails when open

For the best wildlife viewing experience, visit during early morning or late afternoon when animals are most active. Bring a field guide to help identify the diverse species you’ll encounter throughout the preserve.

Safety, Etiquette & Local Customs

Ensuring a safe and respectful visit to Mermet Lake Nature Preserve requires awareness of several important guidelines and local practices.

Safety Considerations

• Wildlife Safety: Never approach, handle, or feed wild animals. The preserve is home to venomous snakes – stay on designated trails and watch your step.
• Water Safety: Life jackets are recommended for all boating activities. Be aware of submerged cypress stumps and trees when boating.
• Weather Awareness: Southern Illinois can experience sudden weather changes. Check forecasts before visiting and seek shelter during thunderstorms.
• Hunting Seasons: Be aware of hunting seasons and wear bright orange clothing if visiting during these periods. Some areas may be closed to non-hunters.
• Road Conditions: The gravel roads may become difficult to navigate during heavy rain or winter conditions.

Etiquette & Conservation

• Leave No Trace: Pack out all trash and leave natural objects where you find them.
• Quiet Observation: Keep noise to a minimum to avoid disturbing wildlife and other visitors.
• Photography Ethics: Maintain a respectful distance when photographing wildlife.
• Protected Species: It is unlawful to harm, harass, handle, or collect snakes and other protected wildlife at Mermet Lake.
• Fishing Regulations: Follow all Illinois fishing regulations and obtain required licenses.

Visitor Comments About Mermet Lake

Practical Travel Tips

Make the most of your visit to Mermet Lake Nature Preserve with these helpful tips from experienced visitors.

What to Bring

• Binoculars and Camera: Essential for wildlife watching and capturing the scenic beauty
• Insect Repellent: Particularly important during warmer months
• Sunscreen and Hat: Limited shade is available in some areas
• Water and Snacks: No food vendors are available within the preserve
• Field Guides: Helpful for identifying birds, plants, and other wildlife
• Appropriate Footwear: Waterproof boots or hiking shoes recommended for trails

Planning Advice

• Timing: Arrive early (around sunrise) for the best wildlife viewing and photography opportunities
• Duration: Allow at least 3-4 hours to fully explore the preserve
• Cell Service: Mobile phone coverage can be spotty in some areas of the preserve
• Accessibility: Most viewing areas are accessible by car, but trails may not be suitable for those with mobility challenges
• Facilities: Restrooms are limited; plan accordingly
• Permits: Fishing requires an Illinois fishing license; hunting requires appropriate permits and check-in

Nature’s Symphony: Your Mermet Lake Adventure Awaits

Mermet Lake Nature Preserve stands as a testament to Illinois’ surprising natural diversity – a place where cypress trees whisper stories of ancient swamplands and migrating birds paint the sky with wings of all colors. This hidden treasure in Southern Illinois offers more than just outdoor recreation; it provides a genuine connection to an ecosystem that has evolved over thousands of years.

Whether you’re casting a line into waters teeming with fish, paddling silently past ancient cypress knees, or simply sitting in contemplation as a great blue heron stalks its prey, Mermet Lake rewards those who take the time to discover its secrets. The preserve’s accessibility makes it perfect for day trips, while its biodiversity ensures that no two visits are ever quite the same.

As seasons shift across the landscape – from spring’s explosion of migratory birds to winter’s majestic bald eagles – Mermet Lake remains a constant reminder of nature’s resilience and beauty. Pack your binoculars, bring your sense of wonder, and prepare to be captivated by one of Illinois’ most remarkable natural treasures.