The Porter Sink area prior to the sudden drainage through a collapse sinkhole.

Lake levels begin to drop at a rate that exceeds normal conditions.

Drainage of the lake reveals sinkholes at the bottom.

Drainage into one the sinkholes.

Close up view of drainage into a sinkhole.

As the lake drains, "fishermen" enjoy an easy catch!

The lake bottom after water has drained.

The Porter Sink area after the lake has drained.

Geologists explore a sinkhole through which drainage occurred.

Down the sink!

To view more photos or video clips, see Florida's Porter Hole Sink.