They ran the athletic complex separate from the school. The school teams had to pay to participate ($1500 PER SPORT). That pool was used by 10 or more teams, clubs, organizations, and there was almost always someone in it. There were 2-3 baseball fields, under the lights and used constantly. Same with soccer. If I drove by Sunday night at 9pm, the lights were on. There was a $1M golf pitch and putt that was donated by a parent.
My daughter’s college probably has similar value in its facilities, but they are spread out across the campus so don’t seem as impressive. It also has a beautiful pool for you, SwimmingDad.