The King’s Canyon Loop is a popular hiking route with pet parents in the San Francisco area. It has great views and a paved path that is easy on the paws, and one of the most direct access points to the trail is through the Rancho Laguna Park. The off-leash dog area here is a favorite with local dog owners. The park hours may sometimes differ from the path's, with the park closing at 4 pm from October 1st to March 31st, and at 6 pm from April 1st to September 30th.
Technically, this trail is known as a loop trail, because it joins the official East Bay Municipality District (EBMUD) trail after roughly 3 miles and comes back to the entrance point. Unfortunately, however, dogs are only allowed on the 3.1-mile stretch that leads from Rancho Laguna Park to the Valley Vista Staging Area. You can also start the trail from this end, but you’ll have to pass through a few other (pet-friendly) trails to reach the Kings Canyon Loop Trailhead. Because of this, many visitors to this path opt to begin at one end and finish at the other, or stop halfway through and turn back. Whatever you decide, be sure to appreciate the sights, pawticularly where the woods open out to a remarkable view of the Upper San Leandro Reservoir.
As one of the most regularly trekked walks in the East Bay Municipality District, it is not necessarily a quiet walk, but it does offer a genuinely immersive experience in nature. Bring along water and snacks, even if you’re only planning a short visit, as both you and Duke are sure to work up an appetite. The Redwood Regional Park and the Anthony Chabot Regional Park are both nearby if you wish to incorporate those into your adventure. Some of these parks have dog fees, so look out for that information.