Buy Yon-Ka Essence Spa at Clayton Hotel Cork City vouchers for deals on Spa Package. Relax with a spa day and  treatments at Essence Spa in Clayton Hotel Cork City. Get treated to a facial, which uses citrus fruits and essential oils which aim to irradiate and revive the complexion. A back, neck, and shoulder massage is the perfect way to unwind, and can be tailored to your needs. Finally, relax with an Essence hydrotherapy bath treatment: lie back as the gently-scented water swirls around you, aiming to soothe tired muscles and calm the mind. With a glass of Prosecco and unlimited use of the pool, sauna, steam room, and Jacuzzi, you'll be treated like royalty and pampered from head to toe. Show how much you care, and treat your loved one to this decadent deal.