This large tug was built in 1978 by Bollinger Marine in Lockport, Louisiana as the tug Marc G. for Gilbeau Marine. Gisclair Marine later acquired the tug, and renamed her Katrina G. Eventually, Dann Marine Towing of Chesapeake City, MD purchased the tug, and she was renamed Calusa Coast.
In 2016, the Calusa Coast began to work exclusively on the Great Lakes with the tank barge Delaware, operating mainly out of Detroit, MI.
- Type: Twin Screw Tugboat
- Year Built: 1978
- Builder: Bollinger Shipyards, Lockport, LA
- Hull No.: 114
- Engines: 2 EMD 12-645-E2
- Horsepower: 3,400 bhp
- Length: 101′ 00″
- Breadth: 30′ 01″
- Depth: 11′ 01″
- Port of Registry: Chesapeake City, MD