The Bartholomew Park Hike traverses a moderate to difficult trail on the grounds of dog-friendly Bartholomew Estate Winery in Sonoma. The main 3-mile trail winds through the park with some genuinely steep sections—especially those log steps near the top—so it’s worth knowing what you’re getting into before you head out with your dog.

The route takes you past a duck pond and an old windmill, then weaves through a mix of mature oaks, madrones, and redwoods before opening into vineyard views. Wildflowers line the path in spring, and the trail crests at a viewpoint where you can see all the way out to San Francisco Bay on a clear day. It’s a solid climb, but the payoff is real.

If your dog isn’t up for the full hike or you want something easier, there are walking paths through the vineyards and park grounds that let you explore at a gentler pace without the elevation gain. Either way, you’re moving through quiet, shaded terrain that feels a world away from the town of Sonoma just below.

Dogs need to stay on leash throughout the park, and you’ll need to clean up after yours—standard stuff, but important since the winery shares this space with visitors coming for wine tasting. The trail can get muddy after rain, especially on those steeper sections, so watch your footing. Free parking is available in a designated area within the park.

The moderate to difficult rating isn’t an exaggeration—those log steps and elevation changes are real work—so plan accordingly if your dog isn’t used to sustained hiking. Check the website before you go to confirm current park and trail hours, since they can vary seasonally and the winery sometimes closes sections for events.