I saw numerous NCAA men’s DI meets during the late 80s earlu 90s - they are increadible. Sit up high inthe stands - the swimmers look gigantic and the 25 y pool so short. Watch what they do under water off the starts and turns. I mean the guys in the breastroke events are taking like 4 to 6 strokes per lap.
Just seemed like they swam in slow motion and effortlessly.
I’ve been at tons of national and international level meets, and the mens DI NCAAs still sticks out in my mind.