![Croaker Hole Croaker Hole Spring in Putnam County](https://www.sjrwmd.com/static/2017/06/Croaker-Hole-1024x680.jpg)
Croaker Hole Spring is a second-magnitude spring. Croaker Hole is a relatively deep, small-diameter hole in the bottom of the St. Johns River. The river is generally about 5 feet to 9 feet deep in this area, except in the immediate vicinity of Croaker Hole, where it plunges to a depth of about 48 feet.