Highlight • Lake
Contra Loma Reservoir
Cycling
5.0
(6)
Mountain biking
4.0
(4)
Hiking
5.0
(1)
Contra Loma Reservoir is an 80-acre lake nestled within the expansive 780-acre Contra Loma Regional Park in Antioch, Contra Costa County, California. This significant body of water, situated on the northeast flank of the Los Medanos Hills, serves as a crucial water supply for the Contra Costa Canal and is a cherished part of the East Bay Regional Parks system. At an elevation of 59 meters, it offers a blend of natural beauty and recreational opportunities in the heart of the East Bay Area.
Visitors consistently praise the reservoir for its diverse offerings, making it a true family-friendly oasis. What draws people back is the unique combination of water-based activities, such as year-round fishing and summertime swimming in the lifeguarded lagoon, alongside extensive land-based adventures like hiking and biking. The serene environment, coupled with scenic views of the surrounding mountains and even Mount Diablo on clear days, provides a refreshing escape for all.
Before heading out, it's helpful to know that Contra Loma Regional Park is easily accessible from Highway 4, with ample parking available. Anglers planning to fish in the reservoir must purchase a Daily Fishing Access Permit, in addition to the park's general access fee. While biking is permitted on designated trails, alcoholic beverages are strictly prohibited throughout the park. The swim lagoon, a popular summer spot, features a sandy beach and chlorinated, filtered water, resembling a large outdoor pool.
The park offers activities for every season, with fishing available year-round for species like catfish, bass, bluegill, and trout. Summertime is ideal for enjoying the swim lagoon, while the numerous hiking, biking, and equestrian trails, including the relatively flat 2-mile Contra Loma Shore Loop and access to the Contra Costa Canal Regional Trail, can be explored throughout the year. These trails provide excellent opportunities for nature study and observing local wildlife, such as various water birds, pelicans, and turtles.
Hikers and cyclists often share stories of spotting diverse birdlife around the reservoir, from flickers to white pelicans, adding an extra layer of enjoyment to their outings. The well-maintained picnic areas, particularly those along the East Shore Trail, offer shady spots for relaxation after a swim or a long walk. The distinct experience of swimming in a filtered lagoon with a sandy beach, combined with the chance to cast a line into the reservoir, creates memorable moments for visitors of all ages.
Whether you're looking for an easy stroll, a challenging bike ride, or a peaceful day of fishing, Contra Loma Reservoir and its surrounding park offer a wealth of options. Explore the many routes available for hiking, cycling, and dog walking, catering to various fitness levels and interests. With komoot, you can easily discover and plan your next adventure, ensuring a rewarding visit to this East Bay gem.
Tips
December 30, 2023
Cycling
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Nearby routes
Best routes near Contra Loma Reservoir
2
riders
15.0km
00:59
70m
70m
This easy 9.3-mile touring cycling loop in Contra Loma Regional Park offers paved paths, reservoir views, and canal-side riding.
3
riders
34.8km
02:34
420m
420m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Details
Informations
Elevation 60 m
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Thursday 13 August
27°C
15°C
0 %
Additional weather tips
Max wind speed: 17.0 km/h
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Frequently Asked Questions
What are the most popular or recommended trails at Contra Loma Reservoir?
The Contra Loma Shore Loop is a popular choice, offering a relatively flat 2-mile dirt trail that encircles the reservoir. For longer excursions, the park provides excellent access to the Contra Costa Canal Regional Trail, which extends beyond the park boundaries. These trails are suitable for hiking, biking, and equestrian use.
Are there any easy or accessible trails suitable for all fitness levels?
Yes, the Contra Loma Shore Loop is considered an easy, relatively flat 2-mile dirt trail, perfect for a leisurely stroll or a family outing. The park also features well-maintained paths and picnic areas, particularly along the East Shore Trail, which are generally accessible.
Is Contra Loma Reservoir dog-friendly, and are there specific trails for dogs?
Yes, Contra Loma Regional Park is dog-friendly. Dogs are generally permitted on trails within the park, but they must be kept on a leash. Always ensure you clean up after your pet to help keep the park enjoyable for everyone.
What are the parking arrangements and permit requirements at Contra Loma Reservoir?
Ample parking is available at Contra Loma Regional Park, easily accessible from Highway 4. There is a general park access fee. Additionally, if you plan to fish, you must purchase a separate Daily Fishing Access Permit in addition to the park entry fee. Parking can fill up quickly, especially on weekends and during summer months, so arriving earlier in the day is recommended.
How crowded does Contra Loma Reservoir get, especially on weekends or during peak season?
Contra Loma Reservoir can become quite popular, particularly on warm weekends and during the summer months when the swim lagoon is open. Parking areas tend to fill up, and trails around the reservoir see increased foot traffic. For a quieter experience, consider visiting on weekdays or earlier in the morning.
What kind of wildlife can visitors expect to see at Contra Loma Regional Park?
The park is home to a diverse array of wildlife. Birdwatchers can spot various species, including water birds, snipes, bitterns, flickers, merlin, and white pelicans. The reservoir itself contains fish like catfish, bass, bluegill, and trout, and you might also spot turtles in and around the water.
Are there any specific viewpoints or notable natural features to look out for?
Visitors can enjoy scenic views of the surrounding Los Medanos Hills and, on clear days, even catch a glimpse of Mount Diablo. The reservoir itself, with its 80 acres of water, is a central natural feature. The diverse landscape of the 780-acre park offers various vantage points for appreciating the natural beauty.
What should I bring for a day of hiking or recreation at Contra Loma Reservoir?
For hiking, comfortable shoes, water, and sun protection (hat, sunscreen) are essential. If you plan to fish, remember your fishing gear and ensure you have the required permits. For swimming in the lagoon, bring swimwear and towels. Picnic supplies are also a good idea if you plan to use the park's picnic areas.
Are there any nearby amenities like restaurants, cafes, or accommodation options?
Contra Loma Regional Park is located near the city of Antioch, which offers a range of amenities. Within a short driving distance, you can find various restaurants, cafes, and grocery stores. For accommodation, there are hotels and motels available in Antioch and the surrounding East Bay area.
Is the swim lagoon chlorinated, and what are its operating hours?
Yes, the swim lagoon at Contra Loma Reservoir is chlorinated and filtered, resembling a large outdoor pool with a sandy beach. It is lifeguarded and available for summertime swimming. Specific operating hours and dates for the swim lagoon typically vary by season, so it's best to check the East Bay Regional Park District's official website for the most current information before your visit.
Can I visit Contra Loma Reservoir during the winter, and what activities are available then?
Yes, Contra Loma Reservoir is open year-round. While the swim lagoon is closed in winter, fishing is still permitted, and the park's extensive network of hiking, biking, and equestrian trails remains accessible. Winter walks can be particularly peaceful, offering cooler temperatures and fewer crowds, making it an excellent time for nature observation.