Photo credit: Sherrie Stille

Making a Splash: Abbie’s Favorite Hidden Swim Spots in Boulder, Colorado

There’s nothing quite like a warm day in Boulder, Colorado — the sun shining, the Flatirons towering in the distance, and the sparkling lakes beckoning swimmers of all kinds, including the four-legged kind. Meet Abbie, a spirited lake-loving pup who knows her way around Boulder’s best swimming spots. Whether she’s leaping through the water, chasing ripples, or paddling peacefully, Abbie has made it her mission to uncover the magical swim zones that make Boulder such a paradise for dogs.

What makes Boulder’s lakes so clean and inviting? It starts with the pristine spring runoff from the surrounding mountains. As snow melts and flows into the reservoirs and creeks, it brings with it fresh, mineral-rich water. Most of Boulder’s lakes are spring-fed or filled by snowmelt, giving them that clear, refreshing quality that both humans and dogs adore. The city also places a strong emphasis on environmental protection and water conservation, helping maintain the beauty and health of these natural spaces.

Abbie’s top swimming destinations? First on her list is Coot Lake — a favorite among local dogs. With its calm, shallow waters and spacious shoreline, it’s the perfect place for a full-on doggy splash-fest. Early mornings and late evenings are especially peaceful, with reflections of the Flatirons rippling in the background.

Coot Lake, Boulder, Colorado – Elevation 5,167 ft: A top destination for dogs, Coot Lake offers off-leash freedom, scenic views, and the perfect spot for a refreshing swim.

Next up is Boulder Reservoir, where dogs are welcome in designated off-leash areas during the off-season. This spot offers more room for long-distance swims, and Abbie never misses the chance to show off her freestyle strokes here.

Dog paradise at Boulder Reservoir — crystal-clear waters, wagging tails, and the Rocky Mountains standing proud in the background. Elevation: 5,430 feet.

For those seeking more secluded gems, Abbie recommends Twin Lakes in North Boulder. These smaller lakes are lesser-known but beloved by locals. Their quiet charm and easy access make them ideal for a low-key swim adventure.

Abbie’s tail wags every time she sees water, and in Boulder, she’s spoiled with options. With so many clean, welcoming lakes to explore, swimming here isn’t just a way to cool off — it’s a lifestyle. For dogs like Abbie, the lakes of Boulder offer more than just water. They offer freedom, fun, and the kind of joy you can only find with your paws in the water and the mountains at your back.

Keep swimming, Abbie — Boulder’s lakes are calling.

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