Jervis Bay will become home to one of the world's most gruelling international triathlon events for the next three years.
The XTERRA Asia-Pacific Championship, a two-day event scheduled for April 26-27, 2014, will attract some of the world's best and toughest athletes.
South Coast MP Shelley Hancock said the Jervis Bay area would provide a fitting location to host the off-road triathlon and accompanying sports festival.
The weekend will also include a sprint distance off-road triathlon, trail runs, kids' events, camps, clinics and social gatherings.
"We look forward to welcoming athletes and their families from around the world to NSW and the beautiful Jervis Bay region, a playground for surfers, bikers, runners, and nature lovers alike," Ms Hancock said.
"XTERRA is all about celebrating the healthy, active, outdoors lifestyle - a perfect fit with life on the NSW South Coast."
Minister for Tourism and Major Events George Souris said the event was estimated to bring in up to $5 million to the NSW economy over the next three years and attract more than 2000 visitors to the Shoalhaven region each year.