Las Vegas resorts known for their luxurious, innovative spa services

Destinations around the world are embracing spas as a necessary part of the full-service resort experience, and Las Vegas is characteristically staying ahead of the trend. According to the International Spa Association, consumers no longer label spas as frivolous. Instead, many now consider spas a necessity to staying healthy.

Las Vegas resorts offers some of the most innovative treatments and luxurious settings as anywhere in the world.

Here is a partial listing of Las Vegas' many resort spas:

Eleven, South Florida's top spa escape, has opened a 20,000-square-foot sister location on the Las Vegas Strip. Eleven Vegas is located in Town Square Las Vegas, the 1.5 million-square-foot regional lifestyle center south of the Strip. The Eleven brand includes spas, signature skin care and makeup lines, a clothing boutique and more. Eleven Vegas features a pool area with crystal chandeliers dripping into the water, a large specialty hair salon, 30 treatment rooms, 11 makeup stations, a signature brow bar and its very own helipad.

The aquatically designed Wet -- The Spa at TI beautifully captures the rejuvenating and nourishing essence of water. Wet's exciting line of water-based signature services includes The Wet Signature Wrap, a warm seawater treatment used to restore key minerals, and The Wet Aromatic Seaweed Bath, a treatment enriched with three types of seaweed vitamins and minerals.

Nurture, The Spa at Luxor, features an array of innovative treatments including Peppermint Foot Therapy, Citrus Marine Detox Body Toner and Escape to Sonoma -- a full-body grape seed oil massage followed by a sea salt scrub and a wine body wrap to nourish dehydrated skin.

Qua Baths and Spa at Caesars Palace features dark wood décor and relaxing waterfalls. Introducing the concept of "social spa-ing," Qua offers communal areas such as the Laconium Room (providing ultraheat therapy), the Arctic Ice Room (complete with snow falling from above) and a tea room staffed by a sommelier skilled at pairing teas with treatments offered.

Adventurous couples can explore the desert landscape of the Southwest through the Adventure Spa at Red Rock Resort. Activities such as kayaking at Lake Mead, mountain biking at Red Rock Canyon and sunrise horseback riding are followed with an indulgent therapeutic massage or aromatherapy session.

Condé Nast Traveler recently ranked The Ritz-Carlton Las Vegas Spa the No. 7 spa in the U.S. This 30,000-square-foot spa at Lake Las Vegas offers 24 treatment rooms, indoor and outdoor fitness and recreation facilities, expert guided programs in stargazing, hiking and mountain biking, yoga classes and overnight room and spa packages available year-round.

The Spa at Green Valley Ranch Resort is just less than 30,000 square feet and includes 28 private treatment rooms, a 74-meter lap pool, state-of-the-art fitness center, full-service salon and outdoor-accessible steam room.

Aquae Sulis Spa at JW Marriott, located in Summerlin, is a 40,000-square-foot luxury retreat incorporating 36 treatment rooms. Unique options offered here include Fire & Ice massages and facials (using both hot and cold stones to relax and constrict muscles) and the Aquae Sulis Ritual, during which guests prepare for their treatment with a series of hot soaks followed by a cool plunge in the spa's healing waters.

The Bathhouse at Mandalay Bay's The Hotel is heralded as one of the trendiest spas on the Strip. The spa showcases a simple, yet elegant décor and offers a multitude of exquisite treatments ranging from champagne facials to crème brûlée body wraps.

The Spa at the Palms features an 18,000-square-foot, three-story spa including a Waterworks Suite with outdoor water therapy and water massage therapy, multiple spa treatment rooms, an aromatherapy bar, relaxation lounges, a fitness center and exercise studio.

Canyon Ranch SpaClub at The Venetian and Palazzo features a 134,000-square-foot facility offering skin care and body treatment rooms, movement therapy and Pilates studios, Watsu pools and a medical/wellness center, among other amenities. An article in Condé Nast Traveler included the Canyon Ranch SpaClub among the top 10 resort spas in the U.S.