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Our beaches looked like the East Coast’s millions of years ago

Sandstone pinnacles and pockets guide your way to the crashing waves below

Giant kelp (Macrocyctis pyrifera) often litters the beach segment of the trail.
Giant kelp (Macrocyctis pyrifera) often litters the beach segment of the trail.

Established to protect the life forms found within it, the Torrey Pines State Natural Reserve became an official state park in 1956. Found within its borders is the Torrey pine (Pinus torreyana), the rarest pine in North America. The Torrey pine’s native habitat is restricted to the Del Mar area and to Santa Rosa Island. The species itself is unusual, not only for its limited distribution, but also because — though it is a yellow pine similar to Jeffrey and ponderosa pines — its needles occur in bunches of five rather than three, as is found in its relatives.

The Beach Trail is a very popular reserve trail. Runners and fitness walkers like it because it provides a great aerobic workout. Hikers and naturalists enjoy it for its ocean views and the opportunity to explore the rich natural history. The Beach Trail starts across the street from the Lodge at Torrey Pines, on the north side of the restrooms.

The trail is well maintained and signed so you won’t get lost. It passes many Torrey pines, but keep an eye open for the other interesting plants that grow within the park, particularly in the spring when small annual wildflowers are in bloom.

Torrey Pines Beach Trail: view of Los Penasquitos marsh from the park

Winding your way along the trail will take you through coastal sage scrub habitat and down more than 186 steps, eventually leading to a narrow eroded gulch with a stairwell carved from sandstone, marking the final descent to the beach. Caution is necessary in the rainy season, as the steps can be very slippery when wet.

The final stairwell, leading down from the bluffs, takes visitors to Flat Rock Beach, where you can see and climb on the large multi-colored slab that is the beach’s namesake. Millions of years ago, coastal San Diego looked much like the current eastern shoreline of the U.S., mostly flat with barrier islands a few miles off shore.

These islands were composed of sand piled up on a shallow seabed by wave action. Lagoons formed between the barrier islands and the low continental shore where mud, silt, and sand accumulated. Combined with the movement of tectonic plates, the sediments resulted in the formation of a fossil-rich layer of yellow-greenish mudstone rock. Flat Rock is a fragment of this mudstone and is embedded with fossil clam and oyster shells that are easily seen at low tide. Finding the fossils is a great treat for kids while exploring the rock.

Map for Razor Point, Beach, and Broken Hill Trails

Sand and surf guide visitors back north to the park entrance. If you are lucky, you might find seals resting on the boulders around Flat Rock. Visitors looking for a longer hike should head back up the road to the lodge and begin a new descent back down the sage-scrub slopes or take one of the other trails found within the reserve.

Torrey Pines Beach Trail

Distance from downtown San Diego: approximately 17 miles. Allow 30 minutes driving time (La Jolla). From I-5, go west on Carmel Valley Road for 1.6 miles. Turn left on South Camino Del Mar, which becomes North Torrey Pines Road as you cross into La Jolla. Go 0.9 mile to the park entrance to pay a day-use fee, and then turn left and park in the lot. The parking area has facilities; however, there are no facilities along the trail except near the lodge at the top of the hill.

Hiking length: 1.5 miles out and back.

Difficulty: Moderate due to the elevation gain along the trail and erosion in some areas. The overall elevation gain/loss is about 340 feet. Dogs are not allowed within the reserve or on the beach.

Along the beach, sandstone cliffs tower above the shore. High tides and storm waves break at the foot of the cliff, undermining the soft sandstone and leaving boulders at the foot of the cliffs. The multi-colored sandstone, which looks like a gigantic layered cake, is unstable. The large boulders scattered along the shore serve as a reminder that visitors need to be cautious and stay off the cliffs.

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Giant kelp (Macrocyctis pyrifera) often litters the beach segment of the trail.
Giant kelp (Macrocyctis pyrifera) often litters the beach segment of the trail.

Established to protect the life forms found within it, the Torrey Pines State Natural Reserve became an official state park in 1956. Found within its borders is the Torrey pine (Pinus torreyana), the rarest pine in North America. The Torrey pine’s native habitat is restricted to the Del Mar area and to Santa Rosa Island. The species itself is unusual, not only for its limited distribution, but also because — though it is a yellow pine similar to Jeffrey and ponderosa pines — its needles occur in bunches of five rather than three, as is found in its relatives.

The Beach Trail is a very popular reserve trail. Runners and fitness walkers like it because it provides a great aerobic workout. Hikers and naturalists enjoy it for its ocean views and the opportunity to explore the rich natural history. The Beach Trail starts across the street from the Lodge at Torrey Pines, on the north side of the restrooms.

The trail is well maintained and signed so you won’t get lost. It passes many Torrey pines, but keep an eye open for the other interesting plants that grow within the park, particularly in the spring when small annual wildflowers are in bloom.

Torrey Pines Beach Trail: view of Los Penasquitos marsh from the park

Winding your way along the trail will take you through coastal sage scrub habitat and down more than 186 steps, eventually leading to a narrow eroded gulch with a stairwell carved from sandstone, marking the final descent to the beach. Caution is necessary in the rainy season, as the steps can be very slippery when wet.

The final stairwell, leading down from the bluffs, takes visitors to Flat Rock Beach, where you can see and climb on the large multi-colored slab that is the beach’s namesake. Millions of years ago, coastal San Diego looked much like the current eastern shoreline of the U.S., mostly flat with barrier islands a few miles off shore.

These islands were composed of sand piled up on a shallow seabed by wave action. Lagoons formed between the barrier islands and the low continental shore where mud, silt, and sand accumulated. Combined with the movement of tectonic plates, the sediments resulted in the formation of a fossil-rich layer of yellow-greenish mudstone rock. Flat Rock is a fragment of this mudstone and is embedded with fossil clam and oyster shells that are easily seen at low tide. Finding the fossils is a great treat for kids while exploring the rock.

Map for Razor Point, Beach, and Broken Hill Trails

Sand and surf guide visitors back north to the park entrance. If you are lucky, you might find seals resting on the boulders around Flat Rock. Visitors looking for a longer hike should head back up the road to the lodge and begin a new descent back down the sage-scrub slopes or take one of the other trails found within the reserve.

Torrey Pines Beach Trail

Distance from downtown San Diego: approximately 17 miles. Allow 30 minutes driving time (La Jolla). From I-5, go west on Carmel Valley Road for 1.6 miles. Turn left on South Camino Del Mar, which becomes North Torrey Pines Road as you cross into La Jolla. Go 0.9 mile to the park entrance to pay a day-use fee, and then turn left and park in the lot. The parking area has facilities; however, there are no facilities along the trail except near the lodge at the top of the hill.

Hiking length: 1.5 miles out and back.

Difficulty: Moderate due to the elevation gain along the trail and erosion in some areas. The overall elevation gain/loss is about 340 feet. Dogs are not allowed within the reserve or on the beach.

Along the beach, sandstone cliffs tower above the shore. High tides and storm waves break at the foot of the cliff, undermining the soft sandstone and leaving boulders at the foot of the cliffs. The multi-colored sandstone, which looks like a gigantic layered cake, is unstable. The large boulders scattered along the shore serve as a reminder that visitors need to be cautious and stay off the cliffs.

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4S Ranch Allied Gardens Alpine Baja Balboa Park Bankers Hill Barrio Logan Bay Ho Bay Park Black Mountain Ranch Blossom Valley Bonita Bonsall Borrego Springs Boulevard Campo Cardiff-by-the-Sea Carlsbad Carmel Mountain Carmel Valley Chollas View Chula Vista City College City Heights Clairemont College Area Coronado CSU San Marcos Cuyamaca College Del Cerro Del Mar Descanso Downtown San Diego Eastlake East Village El Cajon Emerald Hills Encanto Encinitas Escondido Fallbrook Fletcher Hills Golden Hill Grant Hill Grantville Grossmont College Guatay Harbor Island Hillcrest Imperial Beach Imperial Valley Jacumba Jamacha-Lomita Jamul Julian Kearny Mesa Kensington La Jolla Lakeside La Mesa Lemon Grove Leucadia Liberty Station Lincoln Acres Lincoln Park Linda Vista Little Italy Logan Heights Mesa College Midway District MiraCosta College Miramar Miramar College Mira Mesa Mission Beach Mission Hills Mission Valley Mountain View Mount Hope Mount Laguna National City Nestor Normal Heights North Park Oak Park Ocean Beach Oceanside Old Town Otay Mesa Pacific Beach Pala Palomar College Palomar Mountain Paradise Hills Pauma Valley Pine Valley Point Loma Point Loma Nazarene Potrero Poway Rainbow Ramona Rancho Bernardo Rancho Penasquitos Rancho San Diego Rancho Santa Fe Rolando San Carlos San Marcos San Onofre Santa Ysabel Santee San Ysidro Scripps Ranch SDSU Serra Mesa Shelltown Shelter Island Sherman Heights Skyline Solana Beach Sorrento Valley Southcrest South Park Southwestern College Spring Valley Stockton Talmadge Temecula Tierrasanta Tijuana UCSD University City University Heights USD Valencia Park Valley Center Vista Warner Springs
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