There is a hidden gem of a spa in the centre of Birmingham that, at the end of last month, saw an amazing relaunch after an expansion and interior make-over. At One Day Spa, in Birmingham’s beautiful and historic Great Western Arcade, invited guests and clients along to check out the new space and facilities, whilst enjoying food, nibbles and even a little pampering. The space has expanded to include two brand new treatment rooms, taking the total to five. There is a double treatment room perfect for couples wanting to enjoy a spa package, as well as a dedicated manicure and pedicure treatment area and a spray tan room,…