Lunch and spa access: Let yourself indulge in a full day experience with a light lunch, access to the spa facilities and complimentary towels, robe and slippers! Spa Day: Treat yourself to an 'Indulge Yourself' spa day at Mercure Cardiff Holland House Hotel and Spa. One hour treatment: Choose a one-hour treatment to relax with including a facial, back treatment and seaweed foot experience (see full treatment list below). Skincare voucher: Take a memento of the day home with you with a £10 skincare voucher to be used on their products. Mercure Cardiff Holland House Hotel and Spa: Situated in the heart of buzzing Cardiff, it is the perfect tranquil retreat for a pamper. Valid: Mon - Fri from 9am. Indulge Yourself' Spa Day | Regional | Living Social