Foothill Regional Park is a year-round staple for hiking in my family. Of the 211 acres of former ranchland, 6.8 miles of trails are available to hike, run or bike. This time of year, a few golden and russet leaves cling to trees, and moss and lichen dapple the leafless branches. Deer and ducks are abundant in the park, taking advantage of the 3 ponds and sparse patches of remaining greenery.
For a leisurely hike try Three Lakes trail. If you are up for more of a challenge, the approximately 3 mile Perimeter Hike, is easily accomplished in under 2 hours and offers amazing views and decent climbs.
Three Lakes, running through the center of the park and can take around under an hour to accomplish at a light jog/walking pace. From the parking lot take the trail on the right side of the park past the trail sign.
Continue to the second lake, where a family of ducks have taken up residence. From there continue on either side of the lake on Pond B loop until you hit the Ravine trail. Climb up the steep ravine and, turn left on Oakwood trail. Continue on Westside trail to take you back to the parking lot. Be aware, steep ravine trail is a favorite of both Equestrians and deer, so be sure to keep a strong grip on your leash if you brought your dog along for the hike.
For a more challenging intermediate level hike, try the Perimeter hike. From the parking lot, take the left hand Westside trail, up a subtle hill to Oakwood trail. Continue onto Alta Vista Trail, and up a steeper climb to the peak. If the morning fog has lifted, you will get a stunning view of Windsor from this height. A bench sits at the top, if you would like to pause for a snack.
From the top, progress slowly down the trail, as the descent is quite steep. The light among the trees here can be quite dramatic and offers great photographic opportunities. From the base of Alta Vista, continue on Three Lakes trail back to the parking lot.
Although it has been rainy trail conditions are good and not overly muddy.
As with most Sonoma County Regional Parks, dogs are allowed on the trails on leash only. . Both short hikes are great options to energize your morning exercise routine, or squeeze in between holiday visits with family.
Three Lakes Loop
Three Lakes trail .27 miles to second lake
Pond B Loop trail to
Steep Ravine trail .52 miles
left on Oakwood trail
Westside trail .44 miles
Perimeter Hike
Westside trail .44 miles
Oakwood trail 2.4 miles
Alta Vista .5miles
Three Lakes trail .27 miles

In wetter years, this area is usually full of water. Pond B loop the intersection of Steep Ravine Trail.
Here is a video I made when we hiked the Perimeter trail last spring.