James R. Bryant Dog Park sits in the northwest corner of James R. Bryant Park in Ontario, with two fully fenced, grassy off-leash areas that actually separate dogs by size. The small dog section is for dogs under 30 pounds, while the larger area handles bigger breeds. This setup means your dog gets to play with similarly-sized companions rather than navigating a chaotic mixed group.

The park is well-maintained with benches scattered throughout both sections so you can sit comfortably while watching your dog play and socialize. There’s enough seating that you won’t be standing around the whole time, which matters on warm San Bernardino days. The space feels secure and contained, so you can relax knowing the fencing is solid.

Both areas have drinking fountains designed for both dogs and people, which is helpful since Ontario gets pretty hot. You’ll want to bring water anyway, but having fountains on-site means you’re not stuck if you forget or run through your supply. The park staff keeps things in decent shape, so you’re not dealing with overgrown areas or obvious maintenance issues.

This is a solid neighborhood option if you’re in Ontario and need a place where your dog can run off energy and interact with other dogs. It’s the kind of spot where people actually use the benches and keep an eye on their dogs rather than just dropping them off. The size separation works well in practice since it prevents the typical dog park chaos where one enthusiastic eighty-pound dog can overwhelm smaller pups. If you’re staying in the area or live nearby, it’s worth a visit, especially on weekday afternoons when it’s less crowded than weekend mornings.