Here's another video from the archive:
YouTube - WKPP: Turner Sink-Wakulla-Spring Creek Dye Trace
As part of the research requested by the state's Department of Environmental Protection and Wakulla Springs State Park, Dr. Todd Kincaid and his associates have been conducting extensive dye trace studies in the WKP. After connecting the Tallahassee wastewater spray field and then the surface water runoff from Aimes Sink to Wakulla last year, the current trace is attempting to measure how much of water from Leon Sinks diverts to both Wakulla Springs and the springs at Spring Creek. The traces start with the release of fluorescent dye into the groundwater (either at a sink, well, or--in this case-- inside a cave system). Next, the team sets up monitoring equipment at the downstream springs and tests samples hourly to detect the presence of the dye down to parts per billion.
The video is of a team of WKPP divers swiming a length of tubing into Turner Sink and then securing it to the downstream line. If you've never seen an underwater dye release, it looks like a special effect from a scifi movie.
-anthony