Del Mar Dog Park sits right off Pine Valley Road in San Ramon, tucked into the PG&E right of way where you’d least expect to find such a solid off-leash space. The proximity to the Iron Horse Trail makes it easy to combine a visit here with a longer walk or run—you can park nearby and knock out both activities without moving your car.

The park itself handles dogs of all sizes in a single area, which works well enough given the setup. You get decent open space for dogs to actually run around, and the facilities are maintained regularly, so you’re not dealing with overgrown grass or trash scattered about. The ground is mostly clear, making it easy to keep an eye on your dog without tripping over obstacles.

What makes this park practical rather than fancy is its straightforward layout. There’s not much in terms of shade structures or water fountains built in, so bring what you need and plan your visit for cooler parts of the day if it’s summer. The dog crowd tends to be a good mix—people actually watch their dogs here instead of scrolling on their phones, which keeps things relatively mellow even when it’s busy.

The real advantage is the location. Being sandwiched between a residential area and the Iron Horse Trail means you’ve got flexibility with how you spend your time. You can let your dog burn off some energy in the park, then take the trail for a more structured walk before heading home. That kind of combination is harder to find in the East Bay, so if you’re in San Ramon looking for a no-frills spot where dogs can play freely, this works well. Just go in expecting a functional park rather than an elaborate dog recreation center.