The off-leash area here is split across a hillside with enough slope that dogs naturally gravitate to different zones—the smaller, more reserved dogs tend to cluster in the lower section while the larger, more energetic ones work their way uphill. The terrain mixes grass and decomposed granite, so muddy paws are less of a problem than at parks with pure grass, and the natural elevation means water drains reasonably well even after rain. Mature trees scatter across the property, creating actual shade rather than the stark, sun-baked setup you find at many Orange County dog parks.

Dogs of all sizes can use the main off-leash area, which spreads across several acres. There’s no separate fenced enclosure for small dogs, so owners of pocket-sized or nervous animals should scope out timing carefully—this park draws a solid crowd on weekend mornings and early evenings. A water station exists on-site, though during summer heat you’ll want to bring extra water anyway. The park is free to use and operates during standard daylight hours, opening at dawn and closing at dusk.

Olive Hills sits in the foothills area northeast of central Anaheim, a quieter neighborhood than most parks closer to downtown. The location means you’re trading some convenience for fewer crowds on weekday afternoons. The nearest major cross streets are Nohl Canyon Road and Serrano Avenue. If you’re coming from the I-5 corridor, the drive runs about 15–20 minutes depending on traffic. The park works well for dogs that need serious hill work—the grade isn’t extreme, but it’s real enough to tire out moderately energetic dogs faster than flat ground would. Bring a leash for the walk in from the parking area, as the entry zone is not off-leash.