Crab People of the Lost Lagoon

Legend tells of a lagoon trapped inside a reef so sharp, it could slice through a ship's hull faster than an urchin could pick your pocket. The lagoon is said to be home to the largest crabs you ever laid eyes on. Not many have lived to describe em, save for their dark skin and massive size. Rumor has it, they prey on ships which sail nearby, sending crabs to scout for valuables. They kill the crew, take the plunder, and sink the ships so as to grow the reef further. Stories about the crab people have been passed around more than a wench in a brothel, but this much is true! If ye could find the lost lagoon, treasure beyond yer wildest dreams could be yours for the taking, so long as you can escape with yer life. In my opinion, your best bet if you see a crab on board near landfall, kill it before the larger ones come to do the same for you!