Walk a Savannah cat - a dog in cat's body

I saw someone here a few years back on a beach with their Savannah playing in the water. And their size can vary a bit. I don't think their ever small, but all of the videos in that first post are almost definitely F1s. Meaning first generations, serval x DSH. the F2s, F3s, etc can be bred in different ways, back again to another DSH, to another F1, so on and so forth, producing smaller options sometimes. I actually prefer the F1s.

Not that I've done much research on this or ever considered getting one...