Built in 1975, by McDermott Shipyard Incorporated of Morgan City, Louisiana (hull #209) as the Robin XII for the Robin International Towing Company of Harvey, Louisiana.
In 1984, the tug was acquired by Crowley Marine Services Incorporated of San Francisco, California. Where she was renamed as the Sea Breeze.
She was the eighth Sea Robin class tug for Crowley Marine Services Incorporated. The last four vessels in the series had raised bows.
In 2016, the tug was acquired by the Sause Brothers Ocean Towing Company of Portland, Oregon. Where she was renamed as the Kahu.
Powered by two, Caterpillar 3606-3 diesel engines. With Lufkin reduction gears, at a ratio of 3.972:1 Turning two, four bladed, stainless steel, fixed pitch propellers. For a rated 5,000 horsepower.
Her electrical service is provided by two, Detroit 6-71 generator sets. The tug's capacities are 75,000 gallons of fuel oil, 4,104 gallons of lube oil, and 11,000 gallons of potable water.
The towing gear consists of an INTERcon DD-225, double drum, towing winch. Outfitted with 2,200(ft) of 2.25(in) wire on both drums.