Feature

In California the numbers 5 and 405 are synonyms for tension, frustration, and anxiety. They're the two freeways that go from San Diego to Los Angeles, a journey regularly subject to plagues of traffic. But here's a radically different view of these concrete ribbons: They're high roads to relaxation. Four of the seven spa resorts in this story are just off the 5 and 405, and there are four or five more along this stretch that I just didn't have time to visit. (The other three hotels in this story are north of L.A. off the 101, a more benign route.) When highway planners laid out the two roads, it's a sure bet they never imagined they would be the (sometimes) fastest route between two luxury spas. Purists can do this trip on route 1, the old coast road, which I took from San Luis Obispo to Carmel, as it traverses some of the most dramatic coastal scenery in America, including Big Sur. But heading north from San Diego, I went with the adage "When in Southern California, do as the Southern Californians do." Get on the freeway.

The Lodge at Torrey Pines
Staying at this polished 170-room hotel in La Jolla is an immersion in the early-20th-century Arts and Crafts movement. The hotel's muscular post-and-beam construction and distinctive long-slant rooflines were inspired by a pair of Arts and Crafts masterpieces, the Gamble and Blacker houses in Pasadena. There's Gustav Stickley furniture in the public spaces, William Morris patterns in the guest bathrooms, and Charles Rennie Mackintosh–style everything in the spa. It's cozy, has a serious treatment menu—I recommend the shiatsu/acupressure massage—and attracts talented therapists. One, Scott Legier, made the Luxury SpaFinder Therapist Hall of Fame in 2006. (He has since moved to the Grand Del Mar.) In the evenings, the Arts and Crafts palette of brown, copper, and verdigris gives the public spaces a dusky romanticism (though by day it makes the rooms a tad Sunday sober). The service is polished and the setting gorgeous, a fog-cooled and pine-fragrant enclave abutting the 18th green of the Torrey Pines south course, number 60 on Golf Digest's top 100 in America in 2005. [US$425–$4,000, 800-656-0087, www.lodgetorreypines.com]

The Grand Del Mar
It's a 15-minute run up the 5 to route 56 east, the exit for this new 249-room hotel in the hills east of Del Mar. The architecture is Addison Mizner Mediterranean—in fact, the formal restaurant is named Addison—but the interior decor is princely Italian, from the striped, checked, and embossed fabrics to the extraordinary stonework: 15 kinds of marble including portoro, "the most expensive marble you can buy," according to Bob Sullivan, the contractor who installed it. "Stonework doesn't get any more lavish than this hotel," he adds. It's all beautifully executed and gives the Grand something distinctively un–Southern Californian, a pleasing formality, even in the spa. The spa menu is solidly therapeutic, but you must read it closely to understand what's on offer, as it's not organized by treatment type—the Swedish massage is called Tradition. I chose two treatments geared toward athletes. Core Elements combines a lower-back-and-abdominal massage (rare in spas today), with a mud wrap. Athletic Encounter is a client's-choice muscular massage. I opted to focus on hips and glutes (mine are tight from running) and had a terrifically effective treatment from therapist Polly Brasch, herself an avid runner. During my visit, soon after opening, there were numerous operational rough edges—room service didn't pick up, for instance—but I suspect these will have been smoothed out by the time you read this. [US$430–$5,500, 888-314-2030, www.thegranddelmar.com]

Rancho Valencia
This hotel in Rancho Santa Fe has a freestanding U-shaped spa—a little hacienda of fine design. The double-height waiting room has a two-tier wagon-wheel chandelier and a mirror over the fireplace framed in deadwood segments, there are brilliantly colored custom tiles from Mexico in the changing rooms, and a pyramid of terra-cotta planters nicely caps off the ornamental pool in the courtyard. The resort built in a lot of big-spa elements, including a Watsu pool on a private terrace and a steam room with a Vichy shower, the setting for the wonderful Zest for Life. Therapist Diana Moriarty, a 2007 inductee into the Therapist Hall of Fame, calls the four-act treatment the "human car wash." The menu is also strong on hand and foot treatments, a reflection of the resort's extensive tennis program, with 18 courts and daily instructional clinics. All in all, this is a solid spa full of small aesthetic pleasures that make you want to linger—one morning I showed up more than hour early to curl up with a book. [US$550–$1,685, 800-548-3664, www.ranchovalencia.com]

Montage Laguna Beach
From route 1, the entrance to this resort barely registers. But walk to the far side of the lobby and it all comes into view: You're on the fifth floor of a long, dogleg, craftsman-style building overlooking a glamorous swimming pool and the Pacific Ocean. This was one of the first properties that combined the serious workout and therapeutic regimens of destination spas like Canyon Ranch, the luxury pampering that resorts typically offer, and the customization experienced travelers demand. The program's name, the Surrender Retreat, indicates the MO: You let the spa figure out what you need. Surrender works best if done for at least four days—it takes two days to get most people to surrender, say the therapists—but can be done for as little as a half day. In every other area, particularly food, the resort is first-rate—its Studio restaurant is one of the best in Southern California. Rooms hint: 202–206 and 302–306 are right over the spa pool and have fine ocean views. [US$560–$4,800, 866-271-6953, www.montagelagunabeach.com]

Four Seasons Biltmore Santa Barbara
In a hotel, spa location signals spa emphasis. At this venerable 207-room property, built in 1927 in grand Spanish- colonial style, the four spa suites, which have fireplaces and terraces, look across the grounds to the ocean. (They're reserved on a first-come basis, so it pays to book early.) I chose Hands of Healing, in which the therapist uses information gleaned during a short consultation to devise the treatment. Janae Wilbur, a 2007 Therapist Hall of Famer, did wonders with my feedback, coming up with a medley of hot stone, Swedish, Thai, therapeutic stretching, positional-release therapy, and reflexology to create an intensely therapeutic session that left me feeling relaxed, energized, and free of pain in problem areas. [US$550–$4,600, 800-332-3442, www.fourseasons.com]

Bernardus Lodge
I took storied route 1, the coast highway (exiting highway 101 in San Luis Obispo), to this luxury enclave in Carmel Valley. Bernardus is that traveler's delight, a small hotel (57 rooms) with outsize strengths: an excellent restaurant, a broad wine list (owner Ben Pon makes Marinus, one of California's top red wines), and a modest-size spa (5,300 square feet) with major talent. Mags Pasadilla, who trained at Esalen and is a 2007 Hall of Famer, gives a penetrating deep-tissue massage that incorporates liberating lower-back stretches. My only caveat is the resort layout: The nine one- and two-story buildings are so close that the rooms don't feel very private, though they're otherwise very comfortable. Your best bet is to book a Santa Lucia room at the back of the property or rooms 1 through 6, which look out on the Chardonnay vineyard in front. [US$535–$815, 888-648-9463, www.bernardus.com]

CordeValle
My last stop before SFO, CordeValle nestles in the felt-green foothills of the Santa Cruz Mountains on the outskirts of San Martin. The property stands out among this septet because it feels more like a country club than a resort—at its core is a members-only golf club (US$250,000 to join but open to resort guests)—and because the accommodations are more residential than hotel-like. They consist of 3 four-bedroom homes, 5 stand-alone villas, and 28 bungalows (four to a unit), all beautifully appointed and except for the homes, which are on the fairway, perched on a bluff, giving them striking views of the course and hills. The spa, however, is resort level: seven spacious treatment rooms, an extensive menu that includes treatments expressly for golfers, and a solid corps of therapists—in particular, Nicole Hollinger, another 2007 Hall of Fame inductee. Once I let her know thumb- and pressure work was fine, she was off and running, doing a hurts-so-good probe of my back and shoulders and ending with stretches. (She hones her touch by practicing on colleagues blindfolded.) There are terrific hikes to be done up and over the hills above the golf course—jog one of the trails and you've done two days' worth of cardio. [US$745–$4,100, 888-767-3966, www.cordevalle.com]