Wine producers Banrock Station know a good vintage as well as a good causes, and have now added another to their "bin".
The winemakers have teamed up with Australia's World Wildlife Fund in a bid to save the Great Barrier Reef and its green turtle population.
The Banrock Station Environmental Trust will give about $750,000 to a four-year program investigating key pollutants in rivers, the Great Barrier Reef and green turtles themselves.
The reef's turtles are now vulnerable to extinction.
"(It's) an effort to understand the threats to one of the most iconic Australian ecosystems and its native marine wildlife," trust member Dr Christophe Tourenq said.
The reef has lost almost half of its coral since 1985, due largely to pollution, WWF-Australia spokesman Darren Grover said.
It's not the first time the winemakers have supported conservation.
Through the trust, they've donated about $5 million to more than 100 conservation projects across the world.
The partnership comes in time for Friday's International World Turtle Day.
