Cloud9Spa, Carnival Dream
One of the largest spas afloat, Cloud9Spa spans two decks and 40,000 sq ft, bringing you a thermal suite with four heat and steam rooms, a glass-domed thalassotherapy pool with soothing jets to soak away aches and pains as well as a large gym and beauty salon. VIP treatment areas are beautiful sanctuaries with whirlpool baths, drapes and couples couches, and you can recover after your treatment in the aptly named 7th Heaven relaxation area. Menu highlights include Balinese massage, Exotic Frangipani Body Nourish Wrap and a Rasal Body Treatment inspired by Middle Eastern techniques as well as massages for mother/daughter and father/son. If you can’t tear yourself away then stay in a spa stateroom and you’ll enjoy unlimited access to the facilities, priority spa booking, complimentary fitness classes and spa amenities in your cabin.
Carnival Cruises offers seven-night Eastern and Western Caribbean cruises on Carnival Dream from Port Canaveral year-round.

Mandara Spa, Norwegian Epic
With a spa the size of 11 tennis courts and with more than 50 treatments available, there really is something for everyone at the Mandara Spa on new superliner Norwegian Epic. As well as soaking and steaming the day away in the Hydrotherapy Courtyard and thermal suite, you can blend your own body scrub, have a couples massage in a villa with outdoor whirlpool, or bring your kids for an ice-cream themed manicure and pedicure or family massage. On the menu you’ll also find Elemis and Bliss treatments, acupuncture, oxygen wraps and even teeth-whitening and Botox. Book a spa suite from a range of categories and you can pad along any time you like; choose one with a whirlpool and you can continue the spa experience back in your cabin.
Norwegian Cruise Line offers seven-night Eastern and Western Caribbean cruises on Norwegian Epic from Miami this summer.

Oasis Spa, Azura
British skincare expert Elemis heads-up this fabulous spa on new P&O ship Azura, bringing the best of its natural ingredients and modern technology to British cruisers. At the heart of the spa is the adult-only Retreat, an outdoor deck with luxury sunloungers, waiter service and cabanas where you can have al fresco treatments while enjoying the beautiful seascapes. There’s also an outdoor hydrotherapy pool, a DIY scrub station and great range of treatments, including a 24-Carat-Gold Facial, Pro-Collagen Quartz Lift Facial, Bamboo Massage and an Exotic Steam Rasul. Share your spa experience with your partner in a couples treatment room, or book a spa stateroom package and enjoy accommodation in a special spa cabin, consultation to create a bespoke programme of treatments, spa-themed events and a priority booking service.
P&O Cruises offers a range of Mediterranean, Canary Islands and Baltic cruises on Azura from Southampton this summer.

Lotus Spa, Ruby Princess
Soothing Asian designs and a tranquil environment help transport Ruby Princess spa guests to a peaceful parallel world, with his and hers sauna and steam rooms, relaxation areas and an exotic treatment menu all inspired by eastern health philosophies. Highlights include Lotus Massage, Exotic Hand Ritual and Sole Delight Foot Treatment, alongside popular hits such as oxygen facials, deep-tissue sports massage and body work including the Musclease Aroma Spa Ocean Wrap. Tackle aches and pains by trying acupuncture or chiropody – all carried out by expert practitioners – and for a fast route to beauty try teeth-whitening or an Ionithermie Cellulite Reduction wrap, which claims to help shed inches in hours. The spa is popular, especially on sea days, but through Princess’ Cruise Personaliser you can book ahead and secure your ideal day and time.
 Princess Cruises offers a range of 12-night Mediterranean cruises on Ruby Princess this summer.

Samsara Spa, Costa Deliziosa / Luminosa
If you’re worried your Vata or Pitta might be out of balance with your Kapha – or if you even know what this means – then Costa Cruises’ Samsara Spas could be for you. Designed around the Indian philosophy of Ayurveda, the 37,700 sq ft centres aim to be holistic retreats where you are not only pampered physically but have space to unwind mentally too, with dedicated areas called Tridosha Sanctuary and Temple of Peace. The thalassotherapy pool, rock sauna and Turkish bath are great places to loosen some tension and there is an extensive menu of Elemis face, body and wellness treatments. Book a Samsara package and you can enjoy two treatments and two classes, access to the facilities and a health restaurant as well as spa-themed cabin amenities.
Costa Cruises offers a range of Baltic and Norwegian cruises on Costa Deliziosa from Copenhagen this summer.

Vitality at Sea Spa, Oasis / Allure of the Seas
Not just a spa but part of an entire neighbourhood, the Vitality at Sea Spa on Royal Caribbean’s Oasis of the Seas (and soon Allure) is almost a holiday destination in itself. First up there’s a two-deck semi-enclosed solarium where you can lie on sunloungers on your own little island or wallow in a whirlpool suspended above the ocean. Then there’s the actual spa, a vast complex including a thermal suite with heated tile loungers, saunas and steam rooms, treatments ranging from facials and body wraps to Botox and acupuncture with special packages for couples and a dedicated teen spa. With wellness lectures in the Vitality Enrichment Lounge and light snacks in the Vitality Café, you could easily dedicate your whole holiday to spa-ing.
Royal Caribbean International offers seven-night Eastern Caribbean cruises on Oasis of the Seas from Fort Lauderdale this summer.

Spa at Seabourn, Seabourn Sojourn/ Odyssey
You don’t expect a huge spa on a small ship – but despite carrying just 450 passengers, these glamorous sisters dedicate 11,400 sq ft of two aft decks to pampering, pummeling, steaming, scrubbing and soaking guests in extremely luxurious surroundings. The double-height waterfall at the entrance gives way to seven indoor and outdoor treatment rooms operated by Elemis, and spread across the two decks are a thalassotherapy pool, sauna and steam room. The treatment menu includes aromatherapy and reflexology as well as spa essentials such as wraps, facials and hot stone therapy, as well as Elemis, Thai and couples massages. To really splash out you could book a 24 Karat Gold or Elemis Oxydermy facial, an Ionithermie session, or take over a Spa Villa for a half day in even more palatial surroundings.
Yachts of Seabourn offers a range of Northern Europe and Mediterranean cruises on Seabourn Sojourn this summer.


Cunard Royal Spa, Queen Victoria
With whole menus of age-defying facials, Hammam-style mud treatments, indulgent body scrubs and massages, plus several rituals based on the Indian philosophy Ayurveda, the Cunard Royal Spa on Queen Victoria is a destination in itself and very popular on sea and port days alike. It’s run by award-winning spa company [comfort zone], which together with a Kerastase Style Spa bring the most professional and sophisticated therapists along for your holiday. Packages themed to individual needs promise three and a half hours of pampering – to rebalance, for example, expect an anti-oxidant facial, nutritional body treatment, hot stone therapy for the back and lushly hand and foot rituals. Relax before or afterwards in the hydrotherapy pool, laconium (tiled heat room), aroma steam room and sauna, or book a whole day there to unravel. 
Cunard Line offers a range of Mediterranean cruises on Queen Victoria this summer.

AquaSpa by Elemis, Celebrity Eclipse/ Solstice/ Equinox
An indoor, adult-only solarium pool surrounded by teak sunloungers and butlers marks your arrival to a tranquil world. The AquaSpa occupies two forward decks on the Celebrity’s Solstice-class ships. Elemis treatment highlights include Ionithermie cellulite reduction, acupuncture, Botox, Restylane or Perlane sessions, couples massages or La Therapie Hydralift facials. If you have five hours to spare, immerse yourself in one of a range of ‘ceremonies’, from Egyptian ceremony of milk and ginger, to Tahitian ceremony of flowers. Before or after your treatment you can unwind on an outsized chaise-longue or warm your muscles on heated tiles in the Persian Garden. Stay in a spa cabin and you can carry on relaxing once the pummelling has stopped, with unlimited access to the facilities.
Celebrity Cruises has a range of Mediterranean, Canary Islands, Baltic and short cruises on Celebrity Eclipse from Southampton this summer.

The Spa at Silversea, Silver Spirit
Another small ship that’s big on wellness, Silversea’s new flagship Silver Spirit has an 8,300 sq ft spa for just 540 lucky guests. Indoor and outdoor relaxation spots are set across two decks and the spa has a thermal area with a sauna, steam room and an outdoor whirlpool, from where you can admire the seascapes or port views before indulging in one of the many treatments. As well as Elemis facials, wraps and massage there is a good range of medi-spa options including teeth whitening and Botox, Restylane and Perlane sessions, so you can come home looking fantastic as well as feeling it. So-called ‘wellness ceremonies’ aim to target specific health concerns such as arthritis, poor circulation or cellulite, and you can also get acupuncture onboard to tackle those aches and pains.
Silversea Cruises offers a range of seven-night Mediterranean cruises on Silver Spirit this summer.
 

Greenhouse Spa, Nieuw Amsterdam
A well-known urban day spa in the US, Greenhouse operates spas on all the Holland America Line ships. Nieuw Amsterdam will be sailing the Med this summer with a 22-ft glass-enclosed hydrotherapy pool, which uses warm seawater to alleviate aches and pains, as well as a thermal suite with a laconium, Hammam, and a chamomile steam room. There is a long list of treatments, including facials, wraps and body work such as aroma stone therapy. Or for an extra treat choose a spa stateroom from a variety of categories and you’ll enjoy organic cotton bathrobes and slippers, aromatherapy bath salts, a pedometer and use of a spa concierge service for bookings.
Holland America Line offers a range of seven to 14-night Mediterranean cruises on Nieuw Amsterdam this summer.