Castaic Lake State Recreation Area in California, USA - map and visitor information

Research checked: 2026-11-05. Check linked official notices before travel.

Castaic Lake State Recreation Area in northern Los Angeles County, California, has trails and overlooks above a State Water Project reservoir. Plan a shore visit around the Monday and Tuesday closures. The campground remains closed after the Hughes Fire.

Upper Lake overlooks

Trails climb the rolling hills above Upper Castaic Lake. Start near Parking Lot 13 for Grasshopper Canyon, or use the signed West Launch Ramp area trail access if that approach is open.

Know before you go

Fees, hours, and seasonal access

Check the water advisory before going near the lake

The California Department of Water Resources lists a danger advisory for Castaic Lake. The state lists Castaic Lagoon separately and shows no advisory there. Keep people and pets away from affected water and surface scum. Do not eat fish or shellfish from affected water or use it for drinking or cooking. Confirm current shoreline and boating access with the county before visiting. Check the state algal bloom advisories and follow posted signs. For a hike, carry drinking water and allow time to return before the gate closes.

Follow posted trail and shoreline closures

Dogs are not allowed in the water anywhere in the recreation area. Use marked trail access. The recreation guide lists the Upper Lake East (Main) Launch Ramp as closed until further notice. Verify launch status with the county before bringing a boat.

Arrive from Interstate 5

Use 32132 Castaic Lake Drive, Castaic, CA, off Interstate 5. The park trail guide identifies Grasshopper Canyon near Parking Lot 13 and another access point by the West Launch Ramp area.

Nearby parks

• Hasley Canyon Park. Use West Quincy Street in Castaic for a separate neighborhood park stop.
• William S. Hart Regional Park. Head to Newhall Avenue in Santa Clarita.

Walk to a reservoir viewpoint

Pick an open section of the multi-use trail system and look for views of the upper lake. For a shorter visit, turn back at a viewpoint instead of committing to a longer trail.

Day-use facilities and closed camping

The hours and fees page lists seasonal restroom hours. The campground is closed. Keep overnight plans separate from the day visit.

About the recreation area

A State Water Project reservoir

Castaic Lake is part of California’s State Water Project. The recreation area includes an upper reservoir and a separate lower lagoon.

Rolling hills above the lake

The upland trails overlook open water and offer places to watch for birds from the shore.

Check with Los Angeles County Parks

Call 661-257-4050 and check the county park page for current closures before traveling.