This has now re-branded from ASB Aquatic Center to Richmond Aquatic and Fitness Center. Pretty good place for the kids. They love it. A lot of chlorine for me, but I have read somewhere that they have changed their formula recently and they don't use so much now. It can be really packed on a rainy weekend or school holidays. They also have a wave pool but often don't put it on until after 3 (except for school holidays?), so check before going if this is the drawcard for you.
Champion Rd Richmond Nelson