The winter is great fun for pups here. Found most spots were flooded but still much of the park is accessible! The ⛄️ ❄️ the rain does have BEAUTIFUL rainbows 🌈 lots of parking 2 lots at each end of park. A dog wash if they get dirty which they will. SO COME MAKE YOUR OWN MEMORIES with YOUR DOG❤️ Time slips by !!!! Many many people here on weekends. Lots of dogs to see, pet and play with. 40+ acres of off leash fun loosely fenced but it's so big your dog stays w/ U.

If you have a dog that loves the water like my lab, Pepper, then this place is a must! My dog sprints straight through the many acres of open fields and trails to get to her favorite part - the Sammamish river. She will run full speed and jump straight in. She could spend hours in there fetching her tennis ball and swimming around.

Huge off leash dog park with easy, plentiful parking. Well maintained. Out houses for humans and a dog wash off station for those who prefer to rinse their dog off before going home. Beautiful, lush vegetation and clearly marked paths. My dog loved being able to get into the water. The only downsides are that you will deal with mosquitoes being that close to the water and the water is a little bit difficult to get into and out of for shorter dogs due to the height of the stairs leading to the water.

Largest off leash dog park in Seattle ~ Theres tennis balls provide to play with puppies. No fence around the park， no water and no poo bags provide. but PUPPIES HAD LOTS OF FUN~🐶🐶🐶🐶😄

Probably the largest off-leash dog park in King County (and largest park complex), Marymoor offers many options to both humans and canines. Parking is usually $1 for the day and there is plenty of it even on summer weekends. There is a cool pet bath on site along with groomers and even a dog food truck! Olympic Otter

We come here at least twice a week. It’s the best dog park in this area. Tons of space for dogs to play, run, chase each other and swim. If you come during the week, before 3pm you will not find it crowded. Weekends, especially on a warmer, sunnier day it will be very crowded. There is also a paid doggy bath area, dog bakery van and van for getting their nails trimmed. Having 5 different spots for the dogs to swim is also great, especially if your dog likes to swim.

I cannot recommend this dog park enough. We rely on dog parks when traveling, so we've experienced a wide range of options but Marymoor sets a high mark that I'm not sure anything else will be able to top. First, the few negatives. Parking isn't difficult, but it's definitely a different beast versus other dog parks. The lot is huge and it's somewhat confusing to find given that the dog park is set within a much larger public space. It's nice not having to worry about securing a spot, but because the lot is so big and the park is so busy: it does make slightly stressful entering/exiting. The larger negative is that the park isn't fully enclosed. The exterior next to the parking has multiple entrances, always open and without gates like many dog parks. Because of the size of the park, it's an easy issue to avoid once you start walking and put space between you and the parking lot. The positives are the size, the setup and the behavior of the other dogs/people. The dog park is massive. Even when there's many more visitors than other parks, it's easy to find lots of quiet areas. The layout is incredible. There's almost mini biomes, all connected by wide, accessible dirt, mulch and gravel paths. Water area: yes; shaded areas with trees and bushes: yes; long grass and weeds areas: yes; huge open areas to run/fetch: yes. There's something for each dog's personality. The last positive is hard to guarantee, but on two separate trips we noticed everyone was consistently responsible. It might be due to the size of the park or the lack of gates, but every group seemed to have their dogs within their sight and they were actively watching or interacting with them. The size and layout seems to reinforce good behavior.

This place is the biggest off leash park I have ever been to in my life. There are dogs and owners around at all times of day, and everyone is super polite and friendly! There are so many things for dogs to do here, from large dirt piles to climb, fields to dash about in, to pools to splash around in. Also, the park is maintained very well since there's so much foot traffic keeping the paths nice and clean. My puppy can always find a friend to run about with, and I've had some great bench chats with other pet parents! The parking is $1 and it can be a pain to find a machine that works with card, so I recommend stocking up on some dollar bills to keep in your car. My pup and I come here every week, and both he and I have a blast here.

Excellent dedicated dog park in Redmond. It’s free, you only need to pay $1 for parking. It has river front where your dog can swim ..

This park is so nice! Lots of opportunities for the dogs to swim. I do wish that there was more of a beach or easy way for the dogs to get into the water. My dogs were a bit hesitant to jump in.

We had the best time taking our dog to the Marymoor off leash dog park! There were so many friendly, happy dogs enjoying the park in their own ways. For being an area always inundated with puppers, the trails and grassy areas are unbelievably clean. The owners who visit are great at picking up any mess! If you do run out of poop bags, there are plenty available throughout the park. Parking is $1 for the whole day. In addition to the park there's a "Barkery" truck, a van offering nail trimming and ear cleaning services, and multiple self-wash dog stations. Prices for the wash options were $12 and $18. We'll totally be back soon to get our dog and ourselves some fresh air!

Very pretty and the people were great, you could tell the park is well maintained and they put a lot of work into plant and grass growth! The fence is open at the parking area which I didnt care for, my youngest dog doesnt have great recall - and the river access was limited. Great for big dogs but my Corgi couldn't independently get into the water and the current felt unsafe.

Literal heaven for dogs and dog owners. Very big park and lots of space to play catch and swim. 95% of dogs are off leash. Parking is currently $1/day. Wear shoes you don't mind getting dirty because they use bark.

40 acres of heaven for dogs to be dogs. A bunch of trails, and river access for the pups; beautiful nature walks and free endorphins for dog owners. I made a special trip while visiting Seattle; it was totally worth it.

Great place to take your pup. Plenty of space and benches to sit. There are also multiple spots for water access if your pup likes water. Don't worry if they get to messy there is a dog wash by the parking lot!!

Our absolute favorite dog park. We drive from 40 minutes away to go here. My girls love running around without a leash and it’s such a safe place to let them do it. The park is beautiful and sits against the river where dogs can even swim.

Absolutely the best dog park in the state. Big open spaces, river access, and many trails to walk

We LOVE this park! It really has everything you could want and need from a dog park. The open fields are a favorite with some of my dogs, as are the swimming holes. It's well worth the drive from West Seattle.

First of all, stating this is an off-leash dog park is kind of confusing since there are many dog parks that allow off leash but in cages. I wouldn't necessarily call this a dog park but more so a very large fenced in trail for dogs. Second of all, this is one of the coolest dog parks/trails I've been to. The trail is full of soft wood chips and dirt so it's nice to walk on for both humans and dogs. There is shade for about half of the walk and there are 3 areas where the dogs can jump into the river and enjoy a swim in the heat of summer. This park has everything a dog would need and out of the 100+ dogs we've seen we haven't had issues with any of them, they're are pretty friendly and well behaved. Fantastic place!

Our favorite place. It's so beautiful and so much to look at. My dog enjoys running around and meeting other dogs.

Fantastic Offleash dog Park. Dogs of all sizes and varieties lots of room to run. What more could a dog lover ask for? Water, it’s got that too, several places for your dog to jump in swim and chase the ball. Parking is inexpensive. If your dog is friendly with others He will love you to bring him here.

Really nice park. Lots of space, nice dogs and owners. The river is great in summer, too for doggy dips. You do have to pay $1 but well worth it.

Perfect place to take your pup! This is the largest outdoor dog area in Washington- you can wander around here for an hour and have your dog off leash the entire time, multiple entries into the water, too!

Great dog park! Two huge parking lots, lots of massive fields for pups to run around. Well maintained trails thanks to SODA. It's a gorgeous park with plenty of space for all the doggos, a cool mix of fields and trails. There is also multiple spots on the Sammamish slough where the pups can swim in the water.

I went with my son and his dog. It's very roomy, lots of parking and I think only a dollar. There were portions that were closed because of flooding from the last rain event. It was fun watching the dogs playing in the puddles. And they have a dog washing station.

Amazing place to practice dog training with many many distractions. Awesome spots to swim and great big fields to play fetch or let your pup play with other dogs. Also, this park is massive! So even when the parking lots are full there is still a ton of space to spread out. Best dog park I've been to so far. I would like it if there were some agility course equipment, but there might be some that I just haven't come across yet since I haven't yet explored all 100 or so acres of this dog park. Also, please learn about dog's body language before taking your dog to any park. So many dogs that are sweet and obedient are avoided because they play loudly and make some growl-like sounds while playing. I've come across these kinds of dogs and their body language is not aggressive or dominant, but because of the sounds they make other people hurry their dogs away and tell the owner of the loud dog that they should never bring that dog to the park. Then on the other hand there are SO MANY dogs that are so silent, but display extremely aggressive and/or dominant body language. These dogs instigate fights and nobody says a word. Many dog caretakers do not understand their dog's body language. I encourage everyone, whether you have a dog or not, to learn at least the basic body language cues. If owners/caretakers did this we would all have a much more enjoyable time at the off leash dog parks.

Little Miss Foxy really enjoyed the dog park. The massive acreage of open space is great for the dogs to roam and get their exercise as well as the owners. There is a pond for the dogs to swim in too. Can't wait for the concert series to start so we can hear the music and enjoy the park too.

Marymoor Dog Park is an absolute paradise for dogs, dog owners, and dog lovers alike. It has quickly become our go-to destination for endless fun and playtime for our pup. Every time we visit, we know that we can expect a clean and well-maintained space where our dog can interact with numerous other furry friends, rain or shine. The park offers an expansive area, accommodating at least 100 dogs at a time with plenty space leftover, and is thoughtfully designed for dogs of all sizes. Whether they want to socialize, play fetch, or take a refreshing swim, there's something for every canine. Additionally, there are food and grooming trucks, along with a convenient self-service dog wash, to ensure that all of needs are taken care of. I highly highly recommend Marymoor Dog Park to all dog owners that want to come home with a tired and happy pup. It is worth the drive.