[Kevin]

Courtesy the fine (cough) folks at the SA forum:

According to the pics from Google Earth Legacy dug her own trench!

From keysnews.com:

Yacht removal plan least damaging to seagrass

BY TIMOTHY O'HARA

Citizen Staff

Engineers on Wednesday will begin the slow process of floating a 158-foot luxury sailing yacht off the flats several miles north of Key West.

Hurricane Wilma pushed the multimillion-dollar sailboat into shallow seagrass beds between Calda and Blue Fish channels. The Legacy, owned by a private company registered in the Cayman Islands, usually draws 11 feet of water, but has a retractable keel that allows it to draw less.

The owners and government officials are working with FAS-DAM, a private engineering company, to build a 700-foot-long motelike structure, called a cofferdam.

The plan calls for wrapping a vinyl cover over a steel frame, then filling the watertight enclosure with 10 to 11 feet of seawater. The Legacy should float inside the cofferdam, so workers can move it off the flats into deeper water, according to the salvage plan FAS-DAM filed with the Florida Keys National Marine Sanctuary.

Moving the yacht — like an inchworm — will be a three-week process, the plan says. Workers will move the yacht 500 feet to the edge of the cofferdam, then dismantle and re-erect the enclosure farther away. Then they'll move the yacht another 500 feet. Each interval will take about four days.

The operation will damage the seagrass beds, but less so than any other alternative for moving the boat, sanctuary spokeswoman Cheva Heck said. A sanctuary seagrass monitoring team that surveyed the area Monday said the vessel already has taken a large swath of seagrass and created a long scar in the flats.

"They [the owners] are being cooperative," Heck said. "If there is any additional damage they will work with us to restore it. There is significant damage already."