The Deadlier Sex (Dusky MacMorgan Series #4) by Randy Striker, Randy Wayne White
Dusty MacMorgan and his pal Westy O'Davis are fishing along South Florida's Ten Thousand Island coast when they make a most unusual catch-a naked woman. And no sooner do they get her on board than a nearby trawler explodes.
Even more remarkable is the story the waterborne beauty tells upon awakening. She is a member of a hard-core women's group secreted on a local key. And when Mac and Westy escort the lady home, they discover a tropical feminist utopia. But behind the façade lies a deadly secret that will make them wish they'd thrown their alluring catch back...