55A great spot with plenty of space to run and explore! It was also clean and the host was very kind and left out toys and snacks. There is a dog next door to watch out for if your dog is reactive, however. Overall a very nice place!Eilan T.
Eilan T.
September 2023
A great spot with plenty of space to run and explore! It was also clean and the host was very kind and left out toys and snacks. There is a dog next door to watch out for if your dog is reactive, however. Overall a very nice place!
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55This spot continues to be my dog's favorite-- so much space to run and sniff. The hosts keep the place very clean and grass cut-- and especially appreciate the water/snacks/hand sanitizer/tissues, which are always needed. Thank you!K G.
K G.
September 2023
This spot continues to be my dog's favorite-- so much space to run and sniff. The hosts keep the place very clean and grass cut-- and especially appreciate the water/snacks/hand sanitizer/tissues, which are always needed. Thank you!
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55The owner is so nice. The area is perfectly fenced, thatched ground covering is ok for dogs ( no fox tails). He has a dog water bowl, so no need to bring water. He does not allow, I believe, more than 2 dogs at a time, very nice, my dog had it to himself. I will go back. Thank you Gail L.
Gail L.
September 2023
The owner is so nice. The area is perfectly fenced, thatched ground covering is ok for dogs ( no fox tails). He has a dog water bowl, so no need to bring water. He does not allow, I believe, more than 2 dogs at a time, very nice, my dog had it to himself. I will go back. Thank you
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Update - the area has been mowed frequently as we've been visiting for 2 months now so it's very well maintained. We go once a week and my dog goes nuts in the car when we're getting close. Marisa G.
Marisa G.
September 2023
Update - the area has been mowed frequently as we've been visiting for 2 months now so it's very well maintained. We go once a week and my dog goes nuts in the car when we're getting close.
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55I had an incredible experience at this Sniffspot! The yard is not only spacious but also thoughtfully equipped with a hose and water bowl, making it convenient for the dogs. Plus, the abundance of intriguing scents kept the dogs entertained throughout. What truly stood out was the host's hospitality – they went the extra mile by providing snacks and water for us humans too. A big thank you for creating such a fantastic environment for our dogs and ensuring our comfort as well! Highly recommend this Sniffspot!!🐾🌟Honey W.
Honey W.
September 2023
I had an incredible experience at this Sniffspot! The yard is not only spacious but also thoughtfully equipped with a hose and water bowl, making it convenient for the dogs. Plus, the abundance of intriguing scents kept the dogs entertained throughout. What truly stood out was the host's hospitality – they went the extra mile by providing snacks and water for us humans too. A big thank you for creating such a fantastic environment for our dogs and ensuring our comfort as well! Highly recommend this Sniffspot!!🐾🌟
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55This was like Christmas for my Corgi! The space is amazing. We are planning to book again tomorrow. Our dog has never looked so happy. We take our dog to doggy daycare but this is so much more fun for him and gets him super tired. They provided snacks, drinks, water, and had a nice shaded area with chairs. The yard was massive, well maintained and super clean. 10/10.Erik R.
Erik R.
September 2023
This was like Christmas for my Corgi! The space is amazing. We are planning to book again tomorrow. Our dog has never looked so happy. We take our dog to doggy daycare but this is so much more fun for him and gets him super tired. They provided snacks, drinks, water, and had a nice shaded area with chairs. The yard was massive, well maintained and super clean. 10/10.
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55My dog had so much fun running around the property. This was our second visit. There was so much for him to sniff dig and explore. There are new chairs to sit in and snacks and water for you to enjoy. Jennifer W.
Jennifer W.
September 2023
My dog had so much fun running around the property. This was our second visit. There was so much for him to sniff dig and explore. There are new chairs to sit in and snacks and water for you to enjoy.
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Nice big space with secure fencing and lots of interesting things to sniff. My pup did find the mini horse in the next pasture over a bit scary but the space was big enough we just hung out on the other side Faith E.
Faith E.
September 2023
Nice big space with secure fencing and lots of interesting things to sniff. My pup did find the mini horse in the next pasture over a bit scary but the space was big enough we just hung out on the other side
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Nice large place with a good mix of shade and sun. There’s places to sit and the owner had a basket of snacks out too. My boy had a good time checking out the pony (behind the fence)and running around. Thanks!!Brandie P.
Brandie P.
September 2023
Nice large place with a good mix of shade and sun. There’s places to sit and the owner had a basket of snacks out too. My boy had a good time checking out the pony (behind the fence)and running around. Thanks!!
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Nice large property with seating, snack, some toys, and a water bowl. Quiet neighborhood. There was a dog next door, but enough blackout fencing to block my dog's view. Annie had a good time sniffing and running around for about 20 minutes until she noticed the neighbors horses and goats moving about. Overall, a great property and wish we could book again, but my dog is too reactive to come back at this time. Ellie A.
Ellie A.
September 2023
Nice large property with seating, snack, some toys, and a water bowl. Quiet neighborhood. There was a dog next door, but enough blackout fencing to block my dog's view. Annie had a good time sniffing and running around for about 20 minutes until she noticed the neighbors horses and goats moving about. Overall, a great property and wish we could book again, but my dog is too reactive to come back at this time.
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Unfortunately we didn't make it to Masoun's due to an accident on the Hayward bridge causing a ton of traffic. What should have been a 40 min. max drive turned into over 2 hours when we finally just abandoned ship and turned around. Masoun was extremely kind and considerate and offered us to still come/extend our time for free. Will definitely try again! Molly B.
Molly B.
September 2023
Unfortunately we didn't make it to Masoun's due to an accident on the Hayward bridge causing a ton of traffic. What should have been a 40 min. max drive turned into over 2 hours when we finally just abandoned ship and turned around. Masoun was extremely kind and considerate and offered us to still come/extend our time for free. Will definitely try again!
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Gorgeous spacious property with plenty of room for dogs to run and explore. The host had water and snacks out for us and there were a few toys out in the yard for the dogs. It's was quiet and beautiful, and the dogs were excited to run around and exhausted very quickly lolCristin B.
Cristin B.
September 2023
Gorgeous spacious property with plenty of room for dogs to run and explore. The host had water and snacks out for us and there were a few toys out in the yard for the dogs. It's was quiet and beautiful, and the dogs were excited to run around and exhausted very quickly lol
Masoun's 3 Acre Fully Fenced Private Dog Park In Hayward | Sniffspot
55Wow what a great space for my doggo to run! As a newly adopted rescue who needs to work on socialization, this was a perfect solution for getting her wiggles out. There is signage to indicate where to park and where to put poop bags, and a fully fenced in HUGE area to run. So glad this app and this yard exist, thank you!Shannon K.
Shannon K.
September 2023
Wow what a great space for my doggo to run! As a newly adopted rescue who needs to work on socialization, this was a perfect solution for getting her wiggles out. There is signage to indicate where to park and where to put poop bags, and a fully fenced in HUGE area to run. So glad this app and this yard exist, thank you!
How do Union City's private dog parks work?
Private rentals by the hour
Our hosts are locals that are renting their yards and private land to dog owners
Trust and safety first
Spots are designed for safety and both hosts and guests are reviewed after each visit
Designed for private play
Only the people and dogs in your booking are allowed in the spot during your visit
Reactive dogs welcome
Many of the spots we list are designed with sensitive dogs in mind
Become a Sniffpass holder!
Get discounts on all bookings at all spots by buying monthly credits! Learn more!
FAQ about our Union City dog parks
Are dog parks good for dogs?
It is important for dogs to have off leash exercise to sniff and run. But the free and open nature of public dog parks has drawbacks. There could be aggressive dogs, disease transmission and cleanliness issues. For this reason, many dog behaviorists discourage visiting public dog parks and recommend Sniffspot's private dog parks. Sniffspot private dog parks only allow one guest to book at a time and are not open to the public, which solves many of these issues.
Are dog parks safe?
While public dog parks have a number of safety issues, such as aggressive dogs, disease transmission and general cleanliness, Sniffspot dog parks much safer than public dog parks. With Sniffspot all bookings are private for just you and dogs you bring with you and we require all dogs to be vaccinated (or have equivalent titers). All Sniffspot locations are vetted and reviewed by guests so you can find the perfect place for you and your dog. 96% of reviews on Sniffspot visits in the Union City area are 5 stars.
How do I know if a dog park works for my dog?
You can filter Sniffspot dog parks by fencing and distractions. If your dog doesn't have good recall, you can visit one of our 135 fully fenced dog parks in the area. If your dog is reactive to other dogs, you can visit one of our 19 off leash areas where there are no dogs audible or visible nearby. You can also filter locations to avoid other domestic animals and people. We also recommend reading reviews and reaching out to the host with any questions.
Sniffspot has 135 fully fenced dog parks in or near Union City. Browse all fully enclosed options.
Where are good dog hiking trails near Union City?
The Union City area has 135 Sniffspot locations with private trails for you and your dog to walk or hike. Dogs can generally be off leash on Sniffspot trails. The most popular trail is Mark & Lisa's Fully Fenced Yard For Dogs To Rent In Livermore.
Are there dog agility courses for rent in Union City?