Each of Marin’s open-space parklands has its own feature and flavors. Among the smallest is 193-acre Baltimore Canyon near Larkspur. A year-round stream and seasonal waterfall contribute to making this a popular destination for DogTrekkers. An easy, 2.2-mile hike leads down the shady center of the namesake canyon, and dogs under voice control are permitted.
Blithedale Summit Open Space, at 899 acres, offers more diversity and 6.6 miles of trails and fire roads on the north slope of Mount Tamalpais. The Old Railroad Grade Trail, shared with runners and Spandex-clad mountain bikers, follows the route of a tourist train that operated from 1896 until 1930. Terrain ranges from steep, open and rocky to deeply shaded redwood and fern groves. Dogs on leash are allowed on most trails and can go untethered on fire roads (although you may want to think twice about that on weekend days when fast-moving cyclists are about).
For a sense of wilderness, take your four-legged friend to Gary Giacomini Open Space, whose 1,476 acres include a fire road that traverses a windswept ridgeline with forever views. The San Geronimo Fire Road, meanwhile, runs five miles along the preserve’s southern boundary and connects with several other swaths of public lands. The 4-mile out-and-back hike is relatively easy except when the sun is beating down, so save it for a day when the marine layer provides relief.
Photo Credit: @herecomesthesunny_dog