New Hampshire, known for its breathtaking natural beauty, is home to an impressive array of pristine lakes. Nestled in the heart of the Granite State, these crystal-clear bodies of water not only offer scenic views but also provide opportunities for swimming, boating, fishing, and simply reconnecting with nature. While all of New Hampshire’s lakes have their own charm, some stand out for their exceptional water quality. In this article, we’ll explore the cleanest lakes in New Hampshire, where the water is so clear and pure you’ll want to dive right in.
1. Lake Sunapee
Location: Sunapee, NH
Size: 1,000 acres
Water Quality: Excellent
Lake Sunapee, located in the picturesque town of Sunapee, is widely regarded as one of the cleanest lakes in New Hampshire. Its pristine waters are regularly tested and maintained by the Lake Sunapee Protective Association (LSPA), which works diligently to keep the lake’s water quality high. The lake is fed by a combination of springs and small tributaries, which help keep the water fresh and clear. The transparency of the lake is often compared to that of mountain lakes in more remote areas.
The lake is also known for its low nutrient levels, which help minimize algae blooms, making it an ideal spot for swimming and other water activities. Visitors can enjoy boating, kayaking, paddle boarding, and fishing in the crystal-clear waters while taking in the surrounding mountain views.
2. Squam Lake
Location: Holderness, NH
Size: 6,743 acres
Water Quality: Excellent
Squam Lake, famous for being the filming location of On Golden Pond, is one of New Hampshire’s largest and cleanest lakes. Surrounded by dense forests and rolling hills, Squam boasts remarkably clear water, with average water clarity that exceeds 20 feet in some spots. The lake is relatively shallow, which promotes a healthy ecosystem, and its clean water is a result of the area’s low population density and dedicated conservation efforts by organizations like the Squam Lake Association (SLA).
Whether you're looking to relax on the shore, kayak along the shorelines, or hike the nearby trails, Squam Lake provides a pristine environment that feels untouched by time. Its clear waters and vibrant wildlife make it a favorite for nature lovers and photographers alike.
3. Newfound Lake
Location: Bristol, NH
Size: 4,106 acres
Water Quality: Excellent
Newfound Lake is often hailed as one of New Hampshire’s cleanest and clearest lakes. Located in central New Hampshire, Newfound is known for its excellent water quality, with visibility regularly surpassing 10-15 feet in some areas. The lake’s water is remarkably pure, partly due to the efforts of the Newfound Lake Region Association (NLRA), which works to protect the lake’s ecosystem and ensure it remains as clean as possible.
With its clear waters and surrounding mountain views, Newfound Lake is a popular destination for boating, swimming, and fishing. It’s also a great place for families, thanks to its shallow areas perfect for kids and safe, public beaches.
4. Lake Winnipesaukee
Location: Central New Hampshire
Size: 72 square miles (largest in NH)
Water Quality: Good to Excellent in certain areas
While Lake Winnipesaukee is the largest lake in New Hampshire, it is also one of the cleanest when you know where to look. The lake’s water quality varies from one area to another due to its size, but several parts of the lake boast clear waters, especially in the smaller bays and areas with less development. The lake has been the focus of numerous clean water initiatives, especially around its most popular areas like Meredith, Moultonborough, and Center Harbor.
The Winnipesaukee Watershed Association works to preserve the lake's cleanliness by monitoring water quality and encouraging responsible land use practices. If you’re seeking a place with clear waters for swimming, the quieter coves around the lake offer some of the best spots.
5. Pawtuckaway Lake
Location: Nottingham, NH
Size: 775 acres
Water Quality: Very Good
Pawtuckaway Lake is a hidden gem located in southeastern New Hampshire, known for its clean waters and peaceful surroundings. The lake is part of Pawtuckaway State Park, offering not only great water quality but also scenic hiking trails and camping options. The lake is fed by several small streams and is surrounded by woodlands, which help maintain its pristine water.
What makes Pawtuckaway particularly unique is the large boulders and islands scattered across its surface, adding to its natural beauty. The lake is ideal for kayaking, canoeing, and paddleboarding, and its crystal-clear waters make it a great spot for fishing as well.
6. Mirror Lake
Location: Lake Placid, NH
Size: 28 acres
Water Quality: Excellent
Mirror Lake, located near Lake Placid, is a serene, small lake that lives up to its name. The water is so clear that it perfectly reflects the surrounding mountains and trees, creating stunning mirror-like views. With minimal development along its shores, the lake benefits from excellent water quality that is closely monitored by local environmental organizations.
Though smaller than some of New Hampshire's larger lakes, Mirror Lake offers a peaceful retreat for visitors looking to enjoy kayaking, fishing, or just a quiet day in nature. The surrounding forest provides a habitat for wildlife, and the pristine waters make it a perfect spot for reflection—both literally and figuratively.
7. Crescent Lake
Location: Wolfeboro, NH
Size: 133 acres
Water Quality: Very Good
Crescent Lake, located near the town of Wolfeboro on the eastern side of Lake Winnipesaukee, is another New Hampshire lake known for its clarity and clean waters. The lake is relatively small, but it boasts excellent water quality, thanks to its relatively low development and surrounding natural beauty. Crescent Lake is a favorite among those who love paddleboarding, kayaking, and fishing.
The town of Wolfeboro, which calls itself “The Oldest Summer Resort in America,” is the perfect base for exploring Crescent Lake. With a relaxed atmosphere and scenic views, it’s easy to see why this lake is one of the state’s best-kept secrets.
How Do These Lakes Stay So Clean?
New Hampshire's lakes owe their exceptional water quality to a combination of natural factors and concerted environmental conservation efforts. Local lake associations, environmental agencies, and residents work tirelessly to protect these waters through initiatives such as:
- Regular Water Testing: Many lakes in New Hampshire have dedicated water testing programs that monitor water quality and track trends in clarity and contaminants.
- Shoreline Buffers: The natural vegetation along lake shorelines helps filter runoff and prevent erosion, which can contribute to water pollution.
- Conservation Efforts: Organizations like the Lake Sunapee Protective Association and the Squam Lake Association work to preserve the integrity of these lakes by reducing pollution and encouraging sustainable practices.
So, the next time you're looking for an escape into nature, consider visiting one of New Hampshire’s cleanest lakes—you’ll be rewarded with refreshing water, stunning views, and a deeper appreciation for the Granite State’s natural wonders.
