Dove Manatee Spring August 20th. Entered Catfish which is totally covered by duck weed, and traversed to Manatee exit then back to Catfish and going past Sue's Sink towards Friedman's. Water quality under the duckweed was clear for about 40' viz. Good flow but not to difficult to swim. Sand bottom made it easy for no silting. Returned to Manatee and shot thru from 45' to 22' in about 7 seconds. Did a long stop in the Manatee basin. Max depth 93 feet. Only one other team in the system and not when we were in it.