The Bathhouse Spa in the 120-acre Mandalay Bay resort in Las Vegas, US, will reveal a whole new menu of treatments on 1 September at its 15,000sq ft (1,394sq m) 13-treatment room facility.

The resort’s other wellness centre – The Spa Mandalay – and The Bathhouse are available exclusively to guests of the Mandalay Bay resort and its on-site 1,117-key Delano Las Vegas hotel. The new Delano hotel – a partnership between MGM Resorts International and operators Morgans Hotel Group will replace the former THEhotel and is expected to open in September.

The new treatment menu will use locally-sourced ingredients such as cacti and wildflowers, plus milk and honey products featuring edible raw bee pollen from the Mojave region. The ‘Prickly Pear Facial’ uses indigenous cactus extracts to tone the skin. A body scrub has been developed using salts from Utah’s Great Salt Lake, in addition to a Red Rock Canyon-inspired red mud wrap is also on offer.

Global journey treatments have also been added to the new menu. The ‘Asia’ journey features a jade detoxification body treatment and a lotus flower facial, plus a cup of jasmine tea.

The ‘India’ journey includes a mud bath, an amethyst stone facial and a cup of blooming flower tea.

A gold dust massage, royal pedicure and a cup of Earl Grey tea complete the ‘Europe’ journey.

The journey called ‘A Taste from the Islands’ offers a balinese papaya and sauterne bath, a Tahitian facial and a cup of hibiscus tea.

Signature treatments at The Bathhouse include a four-hands massage called ‘Double the Pleasure’, a bourbon-infused sugar scrub treatment called ‘Double Down’ and an original signature treatment of The Bathhouse called ‘Moor Mud Bath’ used to heal a multitude of problems including arthritis, respiratory and hormonal imbalances.

Mandalay Bay is a wholly-owned subsidiary of MGM Resorts International and the debut of the Delano Las Vegas hotel is expected to mark the culmination of Mandalay Bay’s property-wide evolution, according to MGM. Collaborations are set to involve brands such as Cirque du Soleil, The Light Group and Four Seasons, plus Morgans Hotel Group.

In addition to the Delano Las Vegas, Morgans Hotel Group expects to open the Mondrian London, a 359-bedroom hotel on the South Bank of the Thames on 30 September under a long-term management agreement. Morgans also has a franchise agreement for 10 Karakoy, a 71-bedroom Morgans Original in Istanbul, Turkey, which is scheduled to open at the end of 2014. Morgans has another management agreement for a Mondrian in Doha, Qatar, which is expected to open in the second quarter of 2015