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Oshawa off-leash dog parks: Clare Ford and Cordova Valley
Oshawa, Ontario, Canada
Oshawa identifies two off-leash dog parks. Clare Ford is a large natural area within Harmony Valley Park; Cordova Valley is a smaller fenced site with a separate space for small or vulnerable dogs.
Key information
Oshawa identifies two off-leash dog parks. Clare Ford is a large natural area within Harmony Valley Park; Cordova Valley is a smaller fenced site with a separate space for small or vulnerable dogs.
On this page
Both city-listed off-leash areas
| Area | Size | Surface and enclosure | Key limit |
|---|---|---|---|
| Clare Ford at Harmony Valley | 10 hectares of off-leash area | Natural unpaved trails; not all of Harmony Valley is off-leash | Only southern marked trails are off-leash |
| Cordova Valley | 0.29 hectares | Fully enclosed, mulch and grass; separate small/vulnerable-dog area | No winter maintenance |
Sources: Off-Leash Parks
Your visit at a glance
- Choose a setting
Compare Clare Ford natural trails and enclosed Cordova Valley.
- Stay within boundaries
Only marked southern Harmony Valley trails are off-leash.
- Follow owner rules
Read vulnerable-dog and winter-maintenance limits.
Sources: Off-Leash Parks
Clare Ford and Harmony Valley boundaries
The off-leash area was renamed for Clare Ford in June 2025. Older maps may still call it Harmony Valley off-leash dog park. The broader park and open-space area exceeds 60 hectares, but only 10 hectares form the off-leash area.
Follow signs. Only southern trails allow dogs off leash. Leash dogs on entry and exit, in the parking lot and outside off-leash boundaries. Trails are natural, unpaved and not maintained, so they can be steep or slippery.
Sources: Off-Leash Parks
Cordova rules and vulnerable dogs
Cordova Valley’s separate enclosed area can help owners of small or vulnerable dogs. Owners remain legally responsible for behaviour and must keep dogs in view and under voice control. Fill any hole your dog digs before leaving.
Cordova prohibits food, beverages and glass in the enclosure, as well as smoking and vaping. Dogs in heat, sick dogs, aggressive dogs and puppies under four months cannot enter. Choke and prong collars are prohibited.
Sources: Off-Leash Parks
Rules applying to owners
Each person may bring no more than four dogs. Dogs need current licences and vaccines. Pick up waste and use bins. Children need supervision. Dogs must remain visible and under voice control.
Harmony Valley’s guidance says puppies need their 12-week shots and prong collars should be removed. Do not assume this overrides Cordova’s stricter four-month minimum. Stay on designated trails and protect wildlife and plants.
Sources: Off-Leash Parks
Cordova Valley location
Clare Ford off-leash park at Harmony Valley
915 Grandview St. N., Oshawa, Ontario, Canada
The city identifies a 10-hectare off-leash area within the broader Harmony Valley landscape. Only the southern signed trails are off-leash. The facility-page address locates the park; it does not guarantee an accessible trail route.
- Off-leash area
- 10 hectares
- Maximum per walker
- Four dogs
- Surface
- Natural, unpaved trails
Sources: Oshawa off-leash park rules · Harmony Valley Park location
Cordova Valley Park
811 Glen St, Oshawa, Ontario, Canada
The city’s 0.29-hectare enclosed off-leash area has mulch and grass, with a separate enclosure for small or vulnerable dogs. No winter maintenance is provided.
Sources: Off-Leash Parks · Oshawa official park land inventory
Sources: Off-Leash Parks
Questions and answers
How many off-leash dog parks does Oshawa list?
Two: Clare Ford within Harmony Valley Park and Cordova Valley.
Source: Off-Leash Parks
Was Harmony Valley’s off-leash park renamed?
Yes. Council renamed it for Clare Ford in June 2025.
Source: Off-Leash Parks
Is all of Harmony Valley off-leash?
No. Only the marked southern trails are off-leash. The broader park includes on-leash areas.
Source: Off-Leash Parks
Which park is fully fenced?
Cordova Valley is fully enclosed and has a separate area for small or vulnerable dogs.
Source: Off-Leash Parks
How many dogs can one person walk?
Both sets of city rules allow up to four dogs per person.
Source: Off-Leash Parks
Can dogs be loose in the parking lot?
No. Keep them leashed on entry, exit and in parking areas.
Source: Off-Leash Parks
Can a young puppy enter Cordova Valley?
Puppies under four months are prohibited there.
Source: Off-Leash Parks
Are Harmony Valley trails paved?
No. They are natural, unpaved and not maintained, and may be steep or slippery.
Source: Off-Leash Parks
Where can I report litter or damage?
Call Service Oshawa at 905-436-3311. For criminal emergencies call 911; the city lists Durham Police non-emergency at 905-579-1520.
Source: Off-Leash Parks