I grew up in the Fla. panhandle, and it was common to find pieces of Indian pottery in old campsites close to some of the bays. However, if you went walking along freshwater creeks, you’d scare up far more water moccasins than Indian artifacts.
Lol. Same, for me, N. Central Fl, found many a sharks tooth over the years. As well as a few arrowheads.