LOCATION: (lat. 28°16' 44.1" N., long. 82°39' 57.6" W.)
Rock Sink is located in Pasco County, FL, South of the intersection of Ridge Rd. & Bass Lake Dr. in Port Richey, FL.
The sink has very steep rock edge 3/4 of the way around it and the water has alway's been very tannic due to runoff from the nearby cypress heads. This is the site of my first sinkhole experience...I recall slipping on the ledge when I was 5 or 6 years old and taking a header into the murky water which was full of snapping turtles. Despite my long history with this sink, I have yet to dive here. I have been told by various sources that it is anywhere from 45ft to 145ft deep, but one thing they all agreed on was that it has plenty of junk on the bottom. When I last visited, the sink was an unnatural shade of green with a noticible oil slick on the surface. Assholes have been driving & dumping objects into the sink since I can remember, so the varying depth reports may be accurate..by the time I get to it, the sink may only be 35 feet deep.
Here's an example of what to expect at the bottom.
Aerial View of Rock Sink.