Twin Lake is a popular off-leash dog park and walking destination in Boulder County, situated conveniently near the Gunbarrel neighborhood and just across the road from Avery Brewing Company. Unlike the alpine lakes found deeper in the mountains, Twin Lake functions primarily as a community recreation area where dog owners, walkers, and joggers gather year-round to enjoy a well-maintained trail loop and multiple water access points.
The main draw here is the off-leash dog area that surrounds the lake. Several access points along the shoreline allow dogs to wade and swim, making it one of the most frequented dog-friendly water spots in the Boulder area. The walking path that circles the lake is flat, easy to navigate, and suitable for visitors of all fitness levels. Runners and casual walkers share the trail, and the loop can be completed in roughly 20 minutes at a leisurely pace.
Twin Lake is not a wilderness destination. The surrounding area is residential and commercial, and the lake itself is modest in size. That said, reviewers consistently praise the park for its cleanliness, easy access, and pleasant atmosphere. The trail offers nice views of the water and surrounding greenery, and the park sees steady foot traffic without feeling overcrowded.
Parking is available at multiple access points around the lake, and the park is free to visit with no permits required. There are no restrooms, boat ramps, or developed picnic facilities directly at the lake. Visitors should bring their own water and waste bags for dogs.
The proximity to Avery Brewing Company makes Twin Lake a natural pairing for a weekend outing: walk the dogs, let them swim, then head across the street for a beer. This combination has made Twin Lake a staple in the routines of Boulder-area dog owners.
Twin Lake is best visited during the warmer months when the water is comfortable for dogs, though the trail remains accessible year-round. Early morning visits tend to be quieter, while afternoons and weekends bring larger crowds of dogs and their owners.