Torrey Pines Reserve Is Closed Until March. Del Mar's Own Section of It Is Still Open.

Since Tuesday, Sept. 22, nobody has been allowed into the main Torrey Pines State Natural Reserve. That covers walkers, cyclists and cars. California State Parks closed every trail, the Beach Trail Staircase, the Lodge and both upper parking lots for the next phase of a multiyear improvement project. The reserve road closed to vehicles a day earlier. State Parks puts the reopening on or around March 1, 2027, which leaves about four and a half months from today.

On the north side of Los Peñasquitos Lagoon, State Parks' own status page tells a different story. "TPSNR Main Trails" reads CLOSED. Right below it, "TPSNR Extension" reads OPEN. The Extension is the part of the reserve you reach from Del Mar Heights side streets. Walkers who live north of the lagoon still have Torrey pines this winter. The way in is from their own side, on foot from the curb.

What the construction is for, and why it runs on a bird's schedule

State Parks' September 18 release lists the work. Crews are installing new gas, water, wastewater and communication lines, replacing an old restroom building, adding updated accessible parking stalls, and building an accessible pedestrian path from the upper parking lot to the restrooms and the Lodge. Most of the first phase happened underground. The release says the reserve's sensitive habitat required "meticulous monitoring" during that excavation.

The timing is set by habitat. The project's construction page says the schedule is "strictly dictated" by the California gnatcatcher nesting season, and work pauses so the birds are left alone at their most vulnerable times. The same page says the new restroom infrastructure is sized for more than 4 million visitors a year.

The closure also changes some routines. The Torrey Pines Docent Society runs free walks at 10 a.m. on weekends and holidays, starting from the Visitor Center. The Society says walks are usually canceled when the trails are closed. Our research found no notice moving those walks elsewhere for this closure. If you bought a State Parks pass, you can't get a refund, but the pass is still valid at Torrey Pines State Beach, Cardiff State Beach, San Elijo State Beach, South Carlsbad State Beach and Carlsbad State Beach.

The Extension: four short trails, entered from neighborhood streets

The Extension has four trails, listed by State Parks this way:

• Mar Scenic Trail, ½ mile, follows the seasonal creek through the Extension.
• Daughters of the American Revolution Trail, known as the DAR Trail, ½ mile, looks across the marsh to the main reserve and out to the ocean.
• Margaret Fleming Nature Trail, ¾ mile, runs through coastal sage scrub.
• Red Ridge Loop Trail, ⅓ mile, has views of the lagoon, the main reserve and its geologic formations.

According to the Docent Society's Extension map, there are two ways in. One is from Del Mar Scenic Parkway off Carmel Valley Road. The other is from Mar Scenic Drive and Mira Montana Drive off Del Mar Heights Road. There is no lot, only street parking. The main reserve depended on its road and two upper lots. The Extension never had either, so closing them doesn't affect it.

These trails also come with some recent history. A June 2024 wildfire closed the whole Extension. The San Diego Union-Tribune reported that it took about a month for the soil to cool. Trails in the unburned central and western sections partly reopened by August of that year. Red Ridge Loop had fire damage and reopened that October. In the same report, the Torrey Pines Conservancy said it gave $14,000 toward cable fencing materials and cultural-resource survey work. State Parks had repaired 1.3 of the 1.6 miles of fire handline at that point. State Parks doesn't replant burned areas, so the scrub you see on these trails grew back on its own.

There is one gap in what's known. In July 2025, the Union-Tribune reported that Margaret Fleming was still closed while most other Extension trails had reopened. State Parks' current page reports one status for the whole Extension, not trail by trail. Look for posted signs at the Del Mar Scenic Parkway or Mira Montana trailheads before planning a loop around that trail.

Past the Extension, the walk heads north to San Dieguito Lagoon

The Extension is good for an hour. For a longer walk, there are more trails to the north, and some of them are new. The San Dieguito Lagoon Phase II/W-19 restoration was completed in 2024. SANDAG says it restored 64 acres of tidal salt marsh, 15 acres of brackish wetlands and 5 acres of river-border habitat, and the site is now in long-term monitoring. The restoration also added a trail. The one-mile Tidal Trail parallels El Camino Real between the Dust Devil Nature Trail and a planned Coast to Crest connection. The San Dieguito River Park announced it in October 2024.

Here is how the open options compare. Lengths come from the San Dieguito River Park's listings. Its trail table and its StoryMap give slightly different numbers, so the table shows both.

Crest Canyon comes closest to the closed reserve, since it has its own Torrey pines and starts from residential streets. To reach the Coast to Crest segment, cross the river bridge from the Del Mar trailhead lot on the sidewalk. The San Dieguito Lagoon Boardwalk is the first thing on the right, and the Coast to Crest Trail follows. The River Park's staging area on San Andres Drive is another way in.

The trail does not continue to the beach. The River Park describes a westward gap involving Jimmy Durante Boulevard, the Fairgrounds, the railroad bridge and Camino Del Mar. That status page was last updated in January 2019, so conditions on the ground may have changed. SDRP's parking-direction pages are also old. It's worth checking the access points the first time you go.

The beach stays open

The main-reserve route to the sand was the Beach Trail. It drops roughly 300 feet over ¾ mile and ends at the staircase that is now closed. You don't need that trail to reach the beach. Torrey Pines State Beach runs 4½ miles from Del Mar, past Los Peñasquitos Lagoon, toward the Torrey Pines Mesa. North Beach is reached from Carmel Valley Road at McGonigle Road. South Beach is at 12600 N. Torrey Pines Road. Both lots are open throughout the closure.

State Parks recommends going at low tide and keeping your distance from the bluffs. The bluffs are the same sandstone you'd normally see from Razor Point. You just see them from below until spring.

Taken together, the closed reserve sits at the center of these routes. The Extension and Crest Canyon border it on the Del Mar side, the San Dieguito Lagoon trails are to the north, and the beach is to the west.

For updates before March, State Parks points visitors to the construction project page and the @castateparkssd Instagram account. FOX 5 San Diego reported the same closure schedule in September, including that the state beach and both beach lots stay open.

Trail access is one of the quieter things that shapes daily life on a Del Mar street, and you can measure it from a particular address. One house is a short walk from the Mira Montana trailhead. Another is closer to the Racetrack View Drive kiosk. If you'd like to understand how that kind of proximity figures into a home you own or are considering, Adriana Prieto can help. Schedule a Free Consultation.