Moana Pool has several pools. The lap pool is usually divided in two, which means more lanes (though it is hard to find a time when the lap pool is not being used by school groups or teams). At these times, the drop-in lap lanes for adults can become crowded.
The gym is fairly equipped with treadmills, cross trainers/elipticals, free weights, circuit weight machines, rowing machines, and stationary bicycles, including spinning bikes. The city views, which can be seen only from some of the machines, are terrific. The location is also scenic, as the gym is not far from the historic Otago Boys High School. The gym is about a 10-minute walk from the Octagon, straight up Stuart Street.
Cost for using the pool is about $6. Cost for using the gym (with the option of also using the pool) is about $11. Day-use lockers cost $2 .
The changing/shower rooms are clean and spacious. No hair dryers (that I could see, at least). Bring your own soap, shampoo, etc. If you forget your towel and/or swimsuit they can rent these items to you.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC