How come do we see neatly without correction under water?

When snorkeling, scuba diving, or just swimming with goggles, you don’t need corrective glass, why does water do this and not air? Both are transparent continuous fluids.

I wear glasses, and if I swim with goggles, everything is blurry.

However, there are some interesting optical things that happen with the water. Between the reduced distance you can see and the funky stuff that refractive indices can do, I can understand it feeling like your vision is corrected.