Ten feet before us, a sewer pipe made out of limestone spews yellow-brownish insults into the reef ecosystem. The pipe’s mouth is barely visible through the cluster of baitfish and foragers, a silver mass of twitch and glide binging on nutrients long processed and evacuated by Broward County taxpayers. A goliath grouper bullies its way through and enters the pipe to feed. I’m told to watch out for fishing lines—an entanglement hazard for the sub’s thrusters. The Hollywood outfall pipe serves as a popular fishing spot, toilet to table.