Heritage Health Club is a gym at 28 Cathedral Square, in the Christchurch central city. It has a Google rating of 4.9 from 16 reviews. The website says it is open seven days a week, from 6am to 10:30pm.
The website describes a fully equipped gym with a heated, two-lane lap pool, a sauna and a spa. It says the gym has cardio and strength equipment, training zones and personal training, and that it is in the Old Government Building on Cathedral Square, with parking close by.
For a city centre gym with a lap pool and a sauna, this club in the Old Government Building is a convenient option on Cathedral Square.