Can you swim in Castaic Lake and what are the restrictions?

Yes, you can swim in Castaic Lake but only in the designated swim beach area of the Lower Lake Lagoon during the summer season from mid-May to mid-September, and only when a lifeguard is on duty. Swimming is prohibited in other areas of the lake.

What makes Castaic Lake a popular destination?

Castaic Lake is a popular destination because of its diverse recreational activities. It offers boating, fishing, hiking, biking trails, and swimming, with two lakes for different types of boating and fishing. The area also features picnic areas, playgrounds, and a 425-foot-tall dam, making it a versatile spot for various outdoor activities.

What are the catch limits and size restrictions for different types of fish in Castaic Lake, California?

In Castaic Lake, California, the catch limit for black bass is 5 fish, with a minimum size of 12 inches. There are no specific size limits for other species, but fishing from docks and launch ramps is not allowed, and additional rules may apply.

Are there lifeguards on the beaches at Castaic Lake?

There are lifeguards on the beaches at Castaic Lake, but only in designated areas and only when a lifeguard is on duty. Swimming is allowed on a seasonal basis in these designated areas.

What towns are near Castaic Lake?

Towns near Castaic Lake include Santa Clarita, Simi Valley, Fillmore, San Fernando, Moorpark, Calabasas, and Agoura Hills. These towns are all within a 30-mile radius of Castaic. Castaic is also close to Old Town Newhall, which is about 12 miles away.

Castaic Lake Cabin & Vacation Rentals

As one of the largest reservoirs in Southern California, Castaic Lake delivers serious water-based thrills just 40 miles north of Los Angeles. The lake is divided into two zones: a lower lagoon for non-motorized and small electric craft, and a vast upper lake for speedboats, jet skis, and anglers. Striped bass, catfish, and largemouth bass are common catches. The Castaic Lake State Recreation Area includes hiking trails, equestrian paths, and picnic spots with mountain views. The lake regularly hosts triathlons and fishing tournaments. Although swimming is restricted to designated areas, there’s a beach-like shoreline near the lagoon perfect for families. For food, head into Santa Clarita for legendary tacos at La Esquinita Mexican Grill or grab lakeside bites from seasonal vendors. With easy freeway access and big-lake energy, Castaic is the urban outdoors done right.

Surface area (mi): 5.53
Max depth (ft): 328.08
Elevation (ft): 1519.03
Shoreline length (mi): 29

Best time to go

Visit Castaic Lake in late spring, particularly May, when the wildflowers bloom and the sun casts golden reflections on tranquil waters. Ideal for leisurely fishing and exhilarating water sports, the calm days are blissfully uncrowded, allowing for pure relaxation amidst nature’s serene beauty.

Water Quality

Castaic Lake's water exhibits a deep blue hue, reflecting its substantial depth and the surrounding mountainous terrain. The water clarity varies seasonally, with periods of crystal-clear visibility and occasional murkiness due to sediment influx from rainfall.

Ideal for

Family friendly:
Pet friendly:
Romantic getaways:

Popular activities

Boating
Waterskiing
Wakeboarding
Kayaking
Swimming
Fishing
Jet Skiing

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Marinas on Castaic Lake

Westlake Yacht Club

Westlake Yacht Club, California, United States
(~30 mi)

Nearby lakes

Lake Piru

Lake Piru, California, United States
(~9 mi)

Pyramid Lake

Pyramid Lake, California, United States
(~12 mi)

Frequently Asked Questions

Ready to dive into what Castaic Lake has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!

Yes, you can swim in Castaic Lake but only in the designated swim beach area of the Lower Lake Lagoon during the summer season from mid-May to mid-September, and only when a lifeguard is on duty. Swimming is prohibited in other areas of the lake.
Castaic Lake is a popular destination because of its diverse recreational activities. It offers boating, fishing, hiking, biking trails, and swimming, with two lakes for different types of boating and fishing. The area also features picnic areas, playgrounds, and a 425-foot-tall dam, making it a versatile spot for various outdoor activities.
In Castaic Lake, California, the catch limit for black bass is 5 fish, with a minimum size of 12 inches. There are no specific size limits for other species, but fishing from docks and launch ramps is not allowed, and additional rules may apply.
There are lifeguards on the beaches at Castaic Lake, but only in designated areas and only when a lifeguard is on duty. Swimming is allowed on a seasonal basis in these designated areas.
Towns near Castaic Lake include Santa Clarita, Simi Valley, Fillmore, San Fernando, Moorpark, Calabasas, and Agoura Hills. These towns are all within a 30-mile radius of Castaic. Castaic is also close to Old Town Newhall, which is about 12 miles away.

Castaic Lake Vacation Rentals