The dog-friendly Ecology Trail at the Presidio is a 1.4 mile pathway in San Francisco with distinctive habitats from shaded forests to serpentine grasslands. Dogs are welcome on this trail as long as they are on leash. The route lies within the Presidio’s largest watershed, Tennessee Hollow, and connects the Arguello Gate and Inspiration Point to the historic Main Post.

Walking this trail with your dog, you’ll move through several distinct environments. The shaded forest sections offer relief on warmer days, while the serpentine grasslands open up with views and different plant communities. A variety of California native plants line the path, from the endangered Presidio Clarkia, which supports pink blooms in spring, to majestic oaks and redwood trees that have stood for generations.

A spur trail branches off to El Polín Spring, an “outdoor classroom” known for history, bird-watching, and a new picnic area where you can sit with your dog after the hike. The terrain varies enough to keep things interesting without being overly strenuous—it’s a solid walk without requiring serious elevation gain throughout most of the route.

One thing to note: the upper portions of the trail are hiker-only, but bicycles are allowed in the lower sections, so you might encounter riders. Keep your dog close on leash, especially if they’re reactive to bikes or other people passing by.

You can park at the lot serving the Inn at the Presidio or at Inspiration Point on Arguello Boulevard. The Presidio’s Crissy Field and other nearby trails give you options if you want to extend your day, so it’s worth spending a couple hours in this area. The combination of native plants, water features, and varied terrain makes this one of the more interesting shorter walks in the city.