• After a multimillion-dollar addition completed in January, The Equinox Resort and Spa in Manchester, Vt., a RockResort, has unveiled the Avanyu, its new 13,000-square-foot, full-service spa. It features massage, facial and body treatments, and signature therapies, including a Maple Sugar Scrub and Green Mountain Algae exfoliation. www.equinoxresort.com

  • The spa at the new Westin New York at Times Square, the largest new-build hotel in the city in 17 years, offers treatment rooms, men's and women's saunas, and a large fitness center on the 23rd floor overlooking the Hudson River. The hotel, which opened in October at 43rd Street and 8th Avenue, has 863 guest rooms and 32 meeting and breakout rooms. www.westinny.com

  • The Ritz-Carlton Chicago (a Four Seasons Hotel) is offering special spa packages after a $2.5 million renovation at The Spa at The Carlton Club. The spa has more than 25 treatments, massage suites with heated massage tables, personalized music, manicure and pedicure suites, and more. www.fourseasons.com

  • The 12,000-square-foot Spa at Four Seasons Resort Scottsdale at Troon North features 14 treatment rooms, two of which are deluxe spa suites with their own sauna, steam/shower unit, specialty bath jet, and rest room. Many of the spa treatments are indigenous to the area, and some are based on American Indian tradition. www.fourseasons.com/scottsdale

  • Eden Roc Miami Beach, a Renaissance Resort and Spa, has completed its $17 million renovation program, which included a redesign of the resort's meeting space, restaurants, and pool areas. The main pool area has been given a facelift, and event space has been upgraded in the Spa Garden. www.edenrocresort.com

  • The $60 million Bora Bora Nui Resort & Spa opened in Tahiti in October, the newest member of Starwood's Luxury Collection. The resort has 120 bungalow suites and a lavish, hilltop Mandara Spa, the only full-service spa on the island. www.sheratonsintahiti.com

  • The 132-room Rocco Forte hotel, St. David's Hotel & Spa, in Cardiff, Wales, is a striking, contemporary five-star property on Cardiff Bay, and a member of The Leading Hotels of the World. Its top-notch hydrotherapy spa has 13 treatment rooms, offering hydrotherapy, Ayurvedic treatments, and seaweed and mud wraps. Guests can wade through the hydropool, with its massage fountains and currents, and enjoy a water-jet massage or jet bubble bath in the water treatment rooms. www.rfhotels.com

  • Historic Montreux Palace, A Raffles International Hotel in Montreux, Switzerland, overlooking Lake Geneva and the French Alps, opened a spectacular spa facility in October. The Amrita Wellness Centre occupies more than 15,000 square feet in the hotel gardens. Besides an outdoor pool and terrace, there's a large indoor lap pool, a cardio training room, and an aerobics/dance studio. The treatment rooms offer massages, body scrubs, body wraps, and facials, as well as European-style balneology, or bath treatments. www.montreux-palace.com