Best lakes around Diamond Bar are primarily centered around Puddingstone Reservoir, located within Frank G. Bonelli Regional Park. This area serves as a significant recreational hub, offering diverse outdoor activities. The region features both large artificial reservoirs and smaller park lakes, providing various natural landscapes for exploration. These bodies of water are integral to the local environment, supporting recreational use and offering natural spaces near the urban setting.
Last updated: June 27, 2026
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The Bud Turner Trail is a 1.8-mile trail that begins at Laguna Lake Park and is open to hikers, runners, equestrians, and mountain bikers. The trail hugs Laguna Lake and passes an equestrian ring where horses often trot by and occasionally leave droppings.
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Tri City Park is located on the border of Fullerton and Brea and has some beautiful spots to walk and admire the lake. There are barbecues and picnic areas here if you want to sit and enjoy the view with your family after a walk around the loop.
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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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Carbon Canyon Regional Park is a great local park with a small lake and some nature trails featuring redwoods and the Carbon Canyon Creek. It connects to Chino Hills State Park.
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This serene fishing area in the park is a nice sight along the nature walk loop, or a great local place to fish with the family at the docks. There are picnic areas surrounding the pond where you can enjoy the view as well.
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Carbon Canyon Regional Park is a great local park with a small lake and some nature trails featuring Redwoods and the Carbon Canyon Creek. It connects to the Chino Hills State Park and is a great spot for some quick day hiking, fishing, sports, or just sitting and enjoying some nature.
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The main recreational hub is Puddingstone Reservoir, located within Frank G. Bonelli Regional Park. This 250-acre artificial lake offers a wide array of activities. Other notable spots include Laguna Lake, home to the Bud Turner Trail, and the small lake at Carbon Canyon Regional Park.
Yes, Frank G. Bonelli Regional Park, which encompasses Puddingstone Reservoir, is a family-friendly location with several playgrounds for children. Carbon Canyon Regional Park and Tri City Park Lake also offer family-friendly amenities and picnic areas.
Near the lakes around Diamond Bar, you can enjoy a variety of outdoor activities. Puddingstone Reservoir is excellent for fishing, swimming, sailing, kayaking, and jet skiing. Frank G. Bonelli Regional Park also features 14 miles of multi-use trails for hiking, jogging, biking, and horseback riding. For more specific routes, you can explore MTB Trails around Diamond Bar, Cycling around Diamond Bar, and Running Trails around Diamond Bar.
Absolutely. The Bud Turner Trail at Laguna Lake Park is an easy 1.8-mile trail suitable for hikers, runners, equestrians, and mountain bikers. Frank G. Bonelli Regional Park also offers 14 miles of multi-use trails, including an easy 12.4 km loop around Puddingstone Reservoir, perfect for a leisurely walk or bike ride.
Yes, Puddingstone Reservoir within Frank G. Bonelli Regional Park has a designated swim beach that is open during the summer months, making it a popular spot for cooling off.
Puddingstone Reservoir is a major draw for fishing enthusiasts. It is regularly stocked with trout, catfish, bass, bluegill, and carp. Night fishing from the shoreline is permitted in the summer. Remember, a valid California Fishing License is required for individuals 16 years and older. Carbon Canyon Regional Park also offers fishing opportunities in its small lake.
Yes, Carbon Canyon Regional Park and Tri City Park Lake are known to be dog-friendly, offering trails where you can walk with your canine companion. However, pets are generally not allowed at Diamond Valley Lake, which is further away.
The best time depends on your preferred activities. Summer is popular for swimming, with the swim beach open and night fishing permitted. The park's multi-use trails are enjoyable year-round for hiking, biking, and birdwatching. For current operating hours and specific event information, it's best to check the official park website: lacounty.gov.
Yes, Frank G. Bonelli Regional Park, surrounding Puddingstone Reservoir, offers numerous picnic areas with tables and barbecue facilities. Tri City Park Lake also provides barbecues and picnic areas, perfect for enjoying the view with family.
Beyond the lakes themselves, you can enjoy diverse natural landscapes. Frank G. Bonelli Regional Park offers opportunities for birdwatching and views of the San Gabriel Mountains on clear days. Carbon Canyon Regional Park features redwoods and the Carbon Canyon Creek, connecting to Chino Hills State Park.
Yes, Puddingstone Reservoir is suitable for kayaking and paddleboarding. Stand-up paddleboards can be rented at the swim beach within Bonelli Park during its operating season.


Still not found your perfect lake around Diamond Bar? Check out the guides of these regions to see even more beautiful places.