Colors indicate relative depths.
Reds are shallower, blues deeper.
James Gardner looks like a duck out of water, standing on the deck of the ship, hands in his pockets, watching the prepping of the one-person submersibles at the stern. He is not a submersible pilot. He doesn't scuba-dive, but he has provided more information in two days about the bottom terrain of this region of the Gulf of Mexico than anyone has in the past century. Gardner is a marine geologist who has created the most exquisitely detailed maps of the Flower Garden Banks National Marine Sanctuary that will ever need to be done. His maps have revealed the locations of exotic canyons, depressions and sinkholes and are providing scientists with sites to explore.