Built on the deep-blue waters of Lake Mohonk in 1869, this grand 267-room Victorian castle is one of America's oldest family-owned resorts. The spa boasts a unique mountaintop setting and celebrates all that nature has to offer.

The Treatment: Signature Elements of Nature: Shawangunk Grit Mineral Body Treatment, 80 min. $170

This ritual begins with a restful hydro-tub massage to melt tension. The skin is then gently exfoliated with the spa's signature "Shawangunk Grit" (minerals combined with hydrating botanicals) to leave skin silky and soft. A rich body cream with soothing rosehip and plantains is gently warmed and poured over the body for a relaxing massage. A guided power nap completes the treatment.

The DIY version: To replicate the renewal at home, Spa Director Barbara Stirewalt recommends making your own "grit" scrub. "Mix together a handful of Epsom salts, your favorite body oil, and a small portion of a dried herb (lavender or rosemary are suggested). Gently rub this mixture onto your body in a circular motion before stepping into the tub to soak with our Rosemary Mint Bath Collection, $22 at the spa she says. "In your post-treatment at home, take some time for yourself -- listen to soothing music or choose a favorite book." Stirewalt suggests The Three Minute Meditator by Nina Smiley and David Harp, $14.95 (at the spa), which she says is "an almost 'instant' way to hone your personal meditation and relaxation skills."

ESPA, well known throughout Europe as one of the world's premier spas, makes its U.S. home at the Acqualina Resort & Spa on 4.5 acres of breathtaking Atlantic beachfront. The spa's holistic and restorative treatments are steeped in Ayurvedic (traditional Indian medicine) principles.

The Treatment: Salt and Oil Scrub, 20 min. $55

Carefully blended sea salts and essential oils (guests choose between relaxing, invigorating or detoxifying blends) help to remove dead skin cells and the oils are slowly absorbed to help restore lost vitality and protect against dryness.

The DIY version: To detox at home, ESPA recommends daily dry skin brushing. "The action of regular brushing can help to stimulate blood and lymphatic circulation, improving the appearance of cellulite and skin tone," says Spa Director Alla Kosik. "By encouraging regular cell rejuvenation, your skin is left feeling soft, smooth and radiant." Use a natural bristled brush (try ESPA Skin Brush, $26 (at the spa) daily in gentle upward motions -- starting at your feet -- before you shower.

Kosik also recommends using a detoxifying scrub (like ESPA Detoxifying Salt Scrub, $52) once or twice weekly and using gentle upward circular movements while applying it. "The marine and plant ingredients, when combined with gentle massages, stimulate the body's lymphatic system -- boosting drainage and circulation and helping to speed the elimination of toxins from the body," she says. "The sea salts also help to exfoliate...to reveal smoother, more radiant skin beneath."

Located midway down the Florida Keys on a tropical 60-acre island, Calm Waters specializes in island-inspired spa treatments.

The Treatment: Key Lime Mojito -- Signature Body Treatment, 80 min. $180

This body exfoliation begins in a tropical rain room where you feel the invigoration of the house brand of mojito sugar renew and revive your skin. As the gentle rain of the Vichy shower soothes the senses, experience their key lime infused shampoo and conditioning treatment for your hair. After, they submerge you in a warm moisture wrap that leaves your skin feeling soft and hydrated.

The DIY version: If you can't get to the Florida Keys, you can recreate the treatment at home by using a sugar scrub in the shower. (Try Bon Vital Mojito Sugar Scrub, $69.95.) Once your skin is wet, turn off the shower and, using your hands, apply the scrub to damp skin in a circular motion. Don't scrub too hard. Rinse off with cool water and, to really feel like you're on vacation, wash your hair with a key lime infused product like Key Lime Products Key Lime Shampoo, $9.99.

Nestled on 200 acres among rolling hills in a secluded valley 40 miles north of San Diego, Cal-a-Vie combines indulgent European spa philosophies with Californian health, fitness and nutrition concepts.

The Treatment: Hydrotherapy, 50 min. $95
Guests slip into a therapeutic bath designed to reduce water retention and improve the firmness and texture of their skin. Underwater jets massage the body, helping to relieve sore tired muscles and reduce the appearance of cellulite. The treatment can be customized with a selection of antioxidant or anti-aging products.

The DIY version: Spa Director Debbie Zie says, "an aromatic bath is one of the best ways to invigorate [yourself] when you're feeling tired and is an essential step in a slimming program." To recreate hydrotherapy at home, she recommends adding a bath concentrate like Yonka Phyto-Bain, $48 (at the spa), to "de-stress" and she suggests lighting a candle like the Yonka Soothing Massage Oil Candle, $59 (at the spa) whose "wax" morphs into an ointment containing shea and mango butters -- just in case you have someone on hand who's willing to play masseur.

Meaning "infused with spirit," Aspira sits on the banks of a lake that's considered sacred by Native Americans. The spa prides itself on being a journey location for the mind, body and spirit.

The Treatment: Cedars Massage, 50 min. $145
This soothing balancing massage incorporates aromatherapy using fresh native cedar, an herb used by Native Americans to purify and protect.

The DIY version: Spa Manager Shannan Roeh says that a cedar's clean, purifying scent can be enjoyed at home in the bath or shower using Aspira's signature cedar sage soap. (Try Plantlife Cedar Sage 100% Pure & Natural Aromatherapy Herbal Soap $4.95.) "Enjoy a hot bath or warm steamy shower and breathe deeply as the clean fresh fragrance of the cedar is released in the space around you," she says. She suggests you also, "add cedar-infused essential oil (like Aura Cacia, Texas Cedarwood, $3), which boasts many health benefits, to the bath water to further enhance your experience."