The Marina Darsena de Veradero is a bait fish haven.
Literally tens of thousands, maybe even hundreds of thousands of baitfish are whipping in and out and around the docks in a mesmerizing dance of 'stay clear of the tarpon'.
Apparently the loads of baitfish can confuse the unwitting cruiser. The masses of them underneath a vessel's hull can interfere with the depth sounder and make a skipper think he's almost run aground.
They are also a real treat if you're into throwing a cast net.