Approximately 5 miles of a combination of singletrack, fire trails, and technical switchbacks, rocks, some sand and roots. Great Trail for South Florida. This is a county park. Free during the week, only $1.50 per person on weekends and holidays.
I-95 to Hillsboro Blvd. go west about 2 miles or so to Powerline Road, turn left (south) go about 1/2 mile, Quiet Waters Park will be on the right.
http://www.singletracks.com/item.php?c=1&i=164