With its crystal-clear waters and peaceful views, Lake Lillinonah is one of the most enchanting places in Connecticut. This shimmering body of water is the second-largest lake in The Nutmeg State. And because of its massive size, you rarely see giant crowds along the shore. Whether you come here to swim, fish, or kayak, there’s no denying the appeal of Lake Lillinonah’s clean and clear waters. It’s one of the best clear water lakes in Connecticut.

Lake Lillinonah has an impressive 14 miles of shoreline and sits in Fairfield, Litchfield, and New Haven counties.
H. Morrow Long/Wikimedia Commons
As you walk along its peaceful shores, you'll hardly notice it's a man-made lake.
H. Morrow Long/Wikimedia Commons
The Connecticut Light and Power Co. built Lake Lillinonah in 1955 by impounding the Housatonic and Shepaug Rivers.
This area is especially beautiful during spring.
H. Morrow Long/Wikimedia Commons
By the summer, it's not uncommon to see patches of algae floating near the docks. Once you get past the shoreline, however, you'll be met with clean and clear swimming areas.
People flock to Lake Lillinonah to sail along the tranquil waters.
H. Morrow Long/Wikimedia Commons
If you prefer, you can work up a sweat on a kayak and row your way through Lake Lillinonah's impressive 1900 acres.
H. Morrow Long/Wikimedia Commons
It's also a popular fishing destination.
Pedro Xing/Wikimedia Commons
Drop your line into the water and see what you'll catch! This is one of the best ways to enjoy a Connecticut afternoon.
No matter the season, Lake Lillinonah is a gorgeous getaway.
Craig S/TripAdvisor
To check current water levels, visit Lake Lillinonah Authority's website.

Enjoy this overview of this clear and beautiful lake:

Have you ever been to Lake Lillinonah in Connecticut? What are your favorite clear water lakes in Connecticut? Share your thoughts with us in the comments! And if you know another hidden gem we should feature, nominate it in our online form.

For more outdoor adventures, visit these 12 hiking towns in Connecticut.

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More to Explore

The Natural Beauty of Connecticut

William Suphan | June 21, 2023

What are some hidden gem natural attractions in Connecticut?

Hidden gem natural attractions in Connecticut include:

  • Charles Island. This lovely, tiny island is only accessible by a sandbar which disappears with the rising tide.
  • Mianus River. This area is filled with lovely, rushing waterfalls and swimming holes. It is the perfect place to visit during the summer months.
  • Squantz Pond. This lush area is surrounded by beautiful mountains that are especially vivid during the fall when the foliage is awash with color.
  • West River. This serene river is a perfect place for kayaking and taking in many scenic breathtaking views.

Learn more about hidden gem natural attractions in Connecticut. 

What are the most incredible natural wonders in Connecticut? 

The most incredible natural wonders in Connecticut include:

  • Kent Falls. There is a multitude of waterfalls in this beautiful area. There are stairs and observation decks to grant you a great view.
  • Bluff Point State Park near Groton. This is an 800-acre peninsula near the Long Island Sound with utterly gorgeous scenery and beautiful sunsets.
  • Thimble Islands near Branford. This is an archipelago of about 100 tiny islands with only a few residents. Many of them only contain wildlife.
  • Sleeping Giant near Hamden. This is a traprock mountain that looks like a man sleeping on his back.

Find out more about the most incredible natural wonders in Connecticut. 

What are some bucket list natural attractions in Connecticut?

Bucket list natural attractions in Connecticut include:

  • Hammonasset Beach State Park near Madison. This serene shoreline attracts about 1 million people to visit it every year.
  • Case Mountain Recreational Area. This area contains 640 acres of natural beauty. Get a panoramic view from the trail to Lookout Mountain.
  • Cathedral Pines in Cornwall. This is a forest of hemlock and white pine which has grown back since tornadoes hit the area in 1989.
  • Dinosaur State Park and Arboretum. You'll find dinosaur tracks here that are over 200 million years old.

Discover more about bucket list natural attractions in Connecticut. 

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Lake Lillinonah, Connecticut, USA