ONE FIVE ONE is a boutique members' club on level eight of the SAP Tower, at the corner of Queen and Wyndham Streets. Behind the gym floor are a 25-metre indoor pool under a glass roof, a full-size tennis court, a hot dry sauna, a steam room and a spa with a cold plunge pool, plus towels, toiletries and a laundry service. Access is by membership rather than a casual ticket.