4.7
(36)
635
hikers
20
hikes
Hiking around San Dimas takes place in the foothills of the San Gabriel Mountains. The area's landscape is defined by rolling hills, rugged canyons, and the large Puddingstone Reservoir. Trails often follow creek beds and offer routes through regional parks with varied elevation.
Last updated: June 23, 2026
20
hikers
10.8km
02:49
80m
80m
The Bonelli Park Loop Trail offers a refreshing escape, circling the scenic Puddingstone Reservoir with continuous water views. You'll experience a mix of single track, fire roads, and paved sections, winding through rolling hills that burst with wild mustard in season. Keep an eye out for desert cottontails and various waterfowl, especially during quieter times of day. It's a moderate 6.7-mile (10.8 km) hike with a gentle 271 feet (82 metres) of elevation gain, typically taking around 2 hours and 48 minutes, making it a great option for a relaxed outing.
For easy access, you can begin your journey from multiple points around the park; Brackett Field often provides free parking, while the South Shore Swim Beach offers additional facilities. The trail is dog-friendly, just remember to keep your furry friend on a leash. Consider an early start to avoid crowds, particularly on weekends, and to enjoy the cooler temperatures.
This trail stands out for its accessibility within a metropolitan area, providing a genuine sense of nature without a long drive. It's a popular choice for families and beginners, but also offers more challenging sections in the foothills for those seeking a bit more exertion. The constant views of Puddingstone Reservoir and the distant San Gabriel Mountains make it a visually rewarding experience.
6
hikers
9.40km
02:32
110m
150m
The Michael D. Antonovich Trail offers a delightful escape into nature, winding through a shaded oak canyon alongside the babbling Walnut Creek. You'll find yourself crossing the creek up to 15 times, a unique feature that adds to the trail's charm, especially with the chance to spot ducks, squirrels, and herons. Despite its proximity to busy urban areas, the dense canopy and year-round water flow create a surprising sense of seclusion, making it feel like a true hidden gem.
This moderate 5.8-mile (9.4 km) hike, with only 350 feet (107 metres) of elevation gain, is perfect for a leisurely outing, taking about 2 hours and 32 minutes to complete. It's easily accessible from the 57 Freeway in San Dimas, and while the initial downhill section can be a bit steep, the rest of the trail is generally level. Be ready for potentially wet feet at the creek crossings, and consider bringing trekking poles for balance.
Known for its abundant shade, the Michael D. Antonovich Trail is an excellent choice for family-friendly hikes, even on warmer days. Its multi-use nature means you might encounter equestrians, adding to the trail's character. The constant presence of Walnut Creek, flowing year-round, ensures a vibrant natural environment, complete with wildflowers and the soothing sounds of rushing water.

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6
hikers
25.3km
07:01
460m
460m
The Bonelli Trail offers a diverse hiking experience, looping around the 250-acre Puddingstone Reservoir with continuous water views and glimpses of the San Gabriel Mountains. You'll traverse a mix of single track, fire roads, and asphalt, passing through areas of wild mustard and under the shade of coast live oak trees. This difficult 15.7-mile (25.3 km) route involves 1512 feet (461 metres) of elevation gain, providing a substantial workout that typically takes around 7 hours.
Planning your Bonelli Trail hiking adventure is straightforward, as the trail is accessible year-round within Frank G. Bonelli Regional Park. You can start from various points around the loop, with ample parking available throughout the park. Restrooms and picnic areas are conveniently located, and dogs are welcome on leash, making it a flexible choice for a long day out.
What makes the Bonelli Trail notable is its accessibility within a metropolitan area, offering a sense of escape despite its urban proximity. It's a multi-use path popular with hikers, mountain bikers, and trail runners, especially vibrant in spring when wildflowers bloom. The park also provides numerous other recreational opportunities, including boating on Puddingstone Reservoir.
2
hikers
7.17km
01:58
110m
140m
The Bonelli Bluffs Loop offers a refreshing escape with constant views of Puddingstone Reservoir, making it a popular choice for those seeking an easy outing. You'll traverse a varied terrain of single-track, fire roads, and paved sections, winding through areas shaded by coast live oak trees and past vibrant wild mustard. The trail's gentle ups and downs provide just enough challenge to feel like a proper hike without being overwhelming, all while enjoying the backdrop of the San Gabriel Mountains.
Planning your visit to this Bonelli Bluffs Loop family friendly trail is straightforward, with plenty of parking available within Frank G. Bonelli Regional Park. As a multi-use path, you'll share the route with cyclists and equestrians, and it's also a Bonelli Bluffs Loop dog friendly option, so bring your leashed canine companion. To avoid the busiest times and warmer temperatures, an early morning start is often ideal for this accessible route.
This trail is notable for its convenient location in San Dimas, offering a quick natural retreat from urban life. The Bonelli Bluffs Loop terrain elevation difficulty is rated easy, making it suitable for beginners or anyone looking for a relaxed outing. You can enjoy wildlife viewing opportunities, from hawks to rabbits, and the park's amenities like picnic areas add to its appeal as a versatile outdoor destination.
1
hikers
1.95km
00:35
60m
60m
The San Dimas Canyon Park Trail is a charming and accessible escape into nature, perfect for a quick refresh. This easy 1.2-mile (2.0 km) loop takes you through diverse terrain, from chaparral-covered hillsides to peaceful oak woodlands and even a new pine grove. You'll encounter an abundance of cacti, and in spring, the vibrant California sunflowers are a highlight, making it a visually engaging hike that feels far from the city bustle.
Planning your visit is simple, with convenient access points like the San Dimas Avenue parking lot or the flatter Valley Center Staging Area. While the trail is generally easy, covering 191 feet (58 metres) of elevation gain in about 34 minutes, it's wise to wear appropriate footwear, especially after heavy rains when stream crossings can be deeper. This trail is a fantastic option for families and beginners looking for a rewarding outdoor experience without a strenuous commitment.
Beyond the trail itself, San Dimas Canyon Park is notable for hosting the first nature center in the Los Angeles County Park system, offering a self-guided plant identification trail. The park's family-friendly environment, complete with picnic areas and playgrounds, makes it a versatile destination for an extended outing. It's a true hidden gem among hiking trails near San Dimas, providing tranquility and natural beauty right on your doorstep.
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You can cycle across the top of the dam, which was constructed in 1928 to help control flooding in the region. It stands at 147 feet high, and today supports a myriad of outdoor recreation activities on the reservoir.
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Great view of the Puddingstone Reservoir, a 250-acre man-made body of water. There is a road that runs along the perimeter of the reservoir and there is a spot to pull off the road to get a close up view of the water.
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Hear a plane coming in for a landing? You're experiencing air traffic from Brackett Field Airport. This airport is over 100 years old; it was established in 1911 and is one of the oldest operating airports in the Los Angeles area. There are only two runways here, and this small airport is a hub for flight training schools, charter services, and recreational flying.
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This reservoir plays several roles, such as providing water for agriculture, but also serving as a basin where you can swim, fish, and even sail.
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Yes, there are nearly 40 designated hiking routes in the San Dimas area. The trails range from easy, family-friendly walks to more challenging climbs in the foothills of the San Gabriel Mountains, offering a great variety for all skill levels.
Most trails wind through the region's rolling hills and canyons. Many routes, particularly in Walnut Creek Regional Park, follow streams and offer plenty of shade from oak trees, making them pleasant even on warmer days. Other trails circle the large Puddingstone Reservoir, providing consistent water views.
Absolutely. For a shorter, accessible outing, consider the Michael D. Antonovich Trail loop from Life Pacific University. It's a relatively flat and short walk, making it ideal for families or those looking for a gentle introduction to the area's trails.
The View of Puddingstone Reservoir loop from Claremont is a great option for a circular hike. It offers rewarding scenery of the reservoir and the surrounding landscape without being overly strenuous.
Yes, many trails in the San Dimas area are dog-friendly, but they must be kept on a leash. Parks like San Dimas Canyon Park and Walnut Creek Community Regional Park are popular spots for local dog walkers. Always bring water for your pet, especially on warm days.
For trails in Walnut Creek Community Regional Park, the San Dimas Avenue Trailhead is a popular and highly-regarded starting point with free parking. For hikes in San Dimas Canyon Park, there is parking available within the park itself, which also serves as a good base for exploring its trails.
While most trails are easy to moderate, there are a couple of difficult routes for those seeking a challenge. These hikes typically involve steeper climbs into the foothills of the San Gabriel Mountains, offering more rugged terrain and rewarding views from higher elevations.
The natural areas around San Dimas are home to a variety of wildlife. You might see deer, coyotes, rabbits, and numerous bird species. The San Dimas Canyon Nature Center, located within San Dimas Canyon Park, is involved in rehabilitating local birds of prey, so you may be lucky enough to spot hawks or owls in that area.
The trails in San Dimas primarily follow canyons and creek beds, which can have flowing water, especially after rain. However, there are no significant, named waterfalls directly on the main hiking routes within the immediate San Dimas area.
The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the scenic canyon paths, the ample shade provided by trees along creeks, and the beautiful views of Puddingstone Reservoir.
Yes, the park is a great spot for a full day out. It features picnic areas, a campground, and the San Dimas Canyon Nature Center, which has exhibits on local wildlife. For more details on park amenities and hours, you can visit the official park website: lacounty.gov.


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