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Have you ever seen a dog gleefully jump into a lake without a care in the world, getting water everywhere? At Washington Park in Denver, it’s a frequent pleasure! This pretty park is very family and dog friendly and is crammed full of play areas and adventure spaces. Can you picture your dog playing fetch with sticks, making friends and going for a cool swim on a hot day? If you’re curious whether your pup is ready to join in on the waterside action, this is the place to be! For that, let’s jump into the rules and places where dogs can take a dip, make a splash and generally just have a ball!
Are Dogs Allowed to Swim in Washington Park’s Lakes?
The short answer is no, dogs are not allowed to swim in Smith Lake or Grasmere Lake at Washington Park. Denver Parks & Recreation implements this as protection for the natural beauty of the park, the wildlife, and the well-being of all park users – human and canine.
With water everywhere, your dog might take a dip, but you could be fined for doing so. Park rangers, city officials, and other people who care about such things regularly patrol this area to enforce these rules, so you should obey them and find different places where your dog can muddy himself in the perfectly legal water.
Why Can’t Dogs Swim in Washington Park?
Understanding the reasons behind this restriction can help dog owners make informed decisions while visiting the park.
1. Preservation of Wildlife & Water Quality
These are just some of the water-loving creatures from ducks to fish and other water inhabitants, that fill Washington Park. Allowing dogs to swim in these waters may upset the habitat of these animals, causing distress or prompting them to leave. In addition, dog hair, dirt and excrement may be a form of water pollution that affects the delicate ecosystem. And it’s a whole lot of work for Denver’s parks department to keep these lakes clean so that we can play in them, and we can fish in them and paddle boat on them, too.
2. Denver Parks & Recreation Rules
To make sure everybody has a safe and fun time, Denver enforces leash laws and parks rules. The city’s municipal code states that in most areas of Washington Park, dogs must be on a leash. The latter should be shorter than six feet. Off-leash dog activity is allowed only in designated dog parks, and none of the dogs are permitted to swim in lakes or ponds. A downstairs will cost from $50 to $100, depending on the type of violation.
3. Safety Concerns for Dogs
If dogs could swim, however, the lakes of Washington Park might not be the safest place for them to cool off anyway. Bloom of cyanobacteria, or blue-green algae, are common in stagnant water in the summer and can produce toxins that are dangerous when swallowed by animals. There were also underwater hazards for swimming dogs
Dog-Friendly Activities at Washington Park

Even if swimming is prohibited, you will find plenty of other awesome things for dogs to do in Washington Park.
Leashed Walks & Scenic Trails
The park offers a 2.6-mile loop trail for a nice walk with your dog on a leash. There are stunning views of the lakes, gardens and open fields. It’s a fun way to get some exercise and spend quality time together while enjoying nature!
Picnics & Relaxation
There are tons of pretty picnic spots in the park where you and your dog can chill. Dogs are allowed to stay on leash but are still able to enjoy fresh air and meet other friendly pets. Pick up your dog’s waste and keep the park nice for everyone.
Dog Socialization Opportunities
There are no designated off-leash areas, but dogs and their owners tend to hang out on the park’s edges, especially along Downing Street and Virginia Avenue. They are fantastic places for dogs to mingle, so do take the dog, but make sure they are on a lead.
Where Can Dogs Swim Near Washington Park?
If your dog takes to the water, however, Denver is home to several good options where they can swim legally and safely.
1. Cherry Creek State Park – Off-Leash Dog Area
Cherry Creek State Park, Situated just a short drive away from Washington Park, offers a separate off-leash dog area right along Cherry Creek.This is a favorite among Denver dog owners and offers plenty of space for pups to run, play, and splash in the water. You need to purchase a daily or annual park pass to gain entry, but it’s worth it for pups that love the water.
2. Chatfield State Park – Dog Off-Leash Area
Another great option is Chatfield State Park, which features a separate swim pond dedicated to dogs within its off-leash area. The pond is great for dogs to wade and splash in; ideal for good swimmers and those less so. Like Cherry Creek, it is a pay-to-get-in park, but there are so many amenities available as well as the scenery making it a great place to visit.
3. Berkeley Dog Park (Near Tennyson Street)
For a more immediate substitute, within Berkeley Dog Park in North Denver, there is a small lake section that is safe for dogs to swim in. The park features a whole fence, allowing dogs to be safely let off-leash, and the water feature is a popular spot for dogs local to the area. It’s in a valley, so you may not get a lot of sun, but you’re also less exposed to wind this way. Because it’s not as large as a whole state park, it’s better for casual visits than long swimming trips.
Need a Break or Visiting from Out of Town?
If you’re just visiting Denver or need a trusted place for your pet while you explore the city, there are several reliable dog boarding services near Washington Park. Many offer personalized care, outdoor playtime, and even splash zones for pups who love water.
Final Thoughts
Washington Park Dog Park is where dogs and their humans make memories. There is no swimming in the lakes but many activities are permitted. From lovely walks along the trails to lazy picnics, your dog can enjoy themselves here. Don’t forget that park rules apply, leash your dog and clean up after. Beautiful Scenery and Friendly Atmosphere While Washington Park is home to some of the best views, and also some of the best people you can meet to help create some of the best life memories to last forever with your little four-legged companion. So pack the leash and some water and a picnic — the park is your oyster to enjoy for the day!