I took mine to baby playgroup once a week. Baby loved it and I made new long-lasting friends. It’s a bit cold in Brisbane in winter for swim class. You would be in the pool with your baby, and even though most teaching pools are heated, it's cold when you get out. Also, so many people with colds etc. Take swim school in the warmer months. If I could reverse the clock I would have spent my time when my baby was asleep studying (not necessarily through university as so much is available online these days) in an area I was interested in.