A good place to visit if you want to unwind or escape the heat of Milan, as we did after a cycle tour. If you have teanagers or younger kids this is a good way to spend a few (2-3) hours. It's easy to get to on the Metro, about a 5 minute walk from the nearest station.
Negatives - €8 to buy swimming hats (each), nowhere to hire towels at least none that I could find, no food allowed in and limited options available at the food bar. A very relaxed attitude to Covid-19: Social distancing was non-existent, some lifeguards and food-bar staff did not wear masks.