Some days just call for a long, refreshing swim in crystal-clear water. Tennessee may be known for its music, barbecue, and rolling hills, but those who’ve spent time exploring its lakes know the state also boasts some of the cleanest, most inviting freshwater swimming spots around. Whether tucked into the Appalachian Mountains or stretched out along river valleys, these lakes stand out for their water quality, scenic beauty, and accessibility.
I’ve explored many of these spots firsthand, diving into cool mountain reservoirs and lounging on sandy shores. What makes these lakes special isn’t just the clarity of the water—it’s the atmosphere, the peace of swimming surrounded by natural beauty, and the chance to unplug for a little while. Tennessee’s clearest lakes for swimming offer all of that and more.
Here’s a closer look at the lakes that consistently deliver the cleanest, most enjoyable swimming experiences in the Volunteer State.
Norris Lake
Norris Lake in East Tennessee is consistently ranked among Tennessee’s clearest lakes for swimming. Formed by the Norris Dam and stretching across five counties, the lake boasts over 800 miles of shoreline and numerous coves with clear, emerald-green water. I’ve swum here many times, and it always surprises me how transparent the water is—especially around the straight, rocky banks where the lake reaches its deepest points.
The swimming areas at Norris Dam State Park and the marina coves are perfect for families and casual swimmers. I also enjoy anchoring a small boat in one of the remote inlets, diving in, and floating in total silence, surrounded by Appalachian forest. With low boat traffic in certain areas, it’s easy to find peaceful swimming spots where the water is both clean and still.
Watauga Lake
Tucked away in the northeastern corner of the state, Watauga Lake might be Tennessee’s best-kept secret. Surrounded by the Cherokee National Forest, this mountain reservoir feels almost untouched, with cold, crystal-clear water that stays cool even in mid-summer. I often make the drive out here for weekend swims simply because it feels like a high-altitude retreat without ever leaving Tennessee.
What sets Watauga apart is its lack of heavy development and the pristine environment around it. The swimming beach at Watauga Point Recreation Area offers gentle access to the water, with picnic tables and shade nearby. When I’m looking for clean water that feels like it came straight from the clouds, this is where I go.
Center Hill Lake
Located in Middle Tennessee, Center Hill Lake is a favorite for swimming, kayaking, and exploring coves by boat. The steep, rocky banks keep runoff low, and the water clarity remains impressive, especially near the dam and in the deeper portions of the lake. I’ve swum near Floating Mill Park and Hurricane Marina, and the visibility underwater is some of the best you’ll find this far inland.
I usually bring goggles when I swim here, because the water is clear enough to see fish darting below. It’s a great place for families too, with sandy swimming areas and shallow entry points that make it easy to wade in. With nearby waterfalls and scenic trails, Center Hill adds an adventurous edge to your swim day.
Douglas Lake
Though best known for fishing and boating, Douglas Lake also ranks high among Tennessee’s clearest lakes for swimming. Located near the Great Smoky Mountains, the lake benefits from natural mountain runoff and TVA-maintained water flow. Some of the best swimming happens at Dandridge Dock or the beach area near Douglas Dam.
I’ve found that the upper reaches of the lake—where the water narrows and becomes more river-like—offer incredibly clear swimming spots with gentle current and less boat traffic. It’s a great place to cool off after a hike or spend the afternoon floating in a tube. Sunsets here are especially beautiful, reflecting off the glassy water in golden hues.
Tims Ford Lake
Tims Ford Lake in southern Middle Tennessee is one of the most peaceful and clear lakes I’ve visited. Managed by the TVA and surrounded by Tims Ford State Park, this lake was built for recreation. The clarity here is remarkable, especially around the main swimming beach near the visitor center and the island picnic areas.
It’s one of my favorite lakes for a full-day swim outing. You can bring lunch, swim from shore or a kayak, and relax under the trees between dips. The water is cool but never too cold, and because of its remote location, it stays clean year-round. If you’re looking for solitude and clear water, this one delivers.
Dale Hollow Lake
Known across the country for its world-record smallmouth bass, Dale Hollow Lake is equally impressive for swimming. Located on the Tennessee-Kentucky border, the water here is deep, cool, and startlingly clear. I’ve jumped off boat decks and floated for hours in the calm, clear water without worrying about sediment, debris, or algae.
One of the most popular swimming spots is at Lillydale Recreation Area, which has a sandy beach and clean shoreline. I often anchor my boat nearby and spend the day swimming, fishing, and soaking up the sun. The lake’s deep waters and limited shoreline development help maintain its clarity throughout the year.
Tellico Lake
Tellico Lake lies at the edge of the Smoky Mountains, with clear blue water and stunning views of the surrounding ridges. This lake doesn’t get as much attention as others, which makes it ideal for a quieter swimming experience. The water is calm and clean, and it’s not unusual to have a whole cove to yourself.
I like to swim near the public access area at Tellico Dam Reservation or find my own spot along the shoreline. In summer, the water warms to just the right temperature, and the mountain breeze makes it especially refreshing. It’s a great lake for floating, snorkeling, and simply enjoying clean, open water.
South Holston Lake
Shared with Virginia, South Holston Lake is one of the clearest lakes in the state thanks to its mountain-fed water and deep, narrow shape. The surrounding Cherokee National Forest keeps the shoreline largely undeveloped, preserving its natural clarity and peaceful atmosphere.
I’ve enjoyed swimming here near Observation Knob Park and the boat ramps in Washington County. The water is cold and invigorating, perfect for those hot July days. You can also explore remote spots by kayak or paddleboard, stopping along the way for a dip in hidden coves. It’s easily one of Tennessee’s clearest lakes for swimming and well worth the drive if you’re in the Tri-Cities area.
Percy Priest Lake (Lower Basin)
While Percy Priest Lake near Nashville is popular and often busy, the lower basin near the dam offers surprisingly clear water, especially during weekdays or early mornings. Areas like Hamilton Creek and Long Hunter State Park have dedicated swimming areas with roped-off sections and gradual entry.
What I appreciate about Percy Priest is its accessibility. In less than 30 minutes from downtown, I can be floating in water that’s clean, cool, and inviting. It’s a go-to spot when I want to swim without a long road trip, and early mornings here are especially calm and beautiful.
Tips for a Safe and Enjoyable Swim
- Bring Water Shoes: Many Tennessee lakes have rocky or uneven bottoms. Water shoes make it easier to walk in and out of the lake without cutting your feet or slipping on mossy rocks.
- Watch for Drop-Offs: Clear lakes often have steep underwater ledges. I always test the depth before wading too far.
- Use a Swim Buoy: If you’re swimming away from shore, especially in less populated areas, a bright swim buoy makes you more visible to boaters.
- Pack a Cooler and Shade: Most swimming areas don’t have much natural shade. I bring a canopy, towels, plenty of water, and snacks to stay comfortable during long swim days.
Why These Lakes Are Ideal for Swimming
What sets these lakes apart isn’t just how clean they are—it’s how inviting they feel. Tennessee’s clearest lakes for swimming combine high water quality with accessibility, natural beauty, and a sense of peace. Whether I’m diving into the alpine waters of Watauga, floating lazily on Norris, or spending a sunny afternoon with the kids at Center Hill, each lake offers its own kind of magic.
The ability to swim in water where you can see the bottom, watch fish swim past your legs, or float in total silence is something special. And in Tennessee, that experience is never too far away.
Final Thoughts
Swimming in a lake is one of summer’s purest pleasures. It’s a break from the noise of daily life and a way to reconnect with the natural world. The clearest lakes offer not just refreshment, but clarity—both in water and in mind. After each swim, I come away feeling lighter, more grounded, and thankful for what Tennessee’s outdoors has to offer.
Tennessee’s clearest lakes for swimming are scattered across the state, from remote mountain reservoirs to accessible metro-area parks. They provide the perfect setting for family outings, solo retreats, or day-long adventures. Wherever you decide to dive in next, these lakes promise a clean, scenic, and unforgettable swim.