Davis won the PGA Tour of Australasia Order of Merit in 1990 and 1991 and his seven European Tour wins include the British PGA Championship and the Volvo Masters. He was ranked in the top 10 of the Official World Golf Rankings for 29 weeks between 1987 and 1992.
Omanu Golf Club manager, Barry Plank, says the course is in great condition considering the present drought.
"Our full course watering system provides a great covering of grass on both the tees and all of our fairways. The greens staff have been working tirelessly to present the greens in top condition for the Pro-Am day which for the players it will be like putting on a carpet, very similar to the greens you see on television.
"The Legends Pro-Am is a great club day that allows our members to mix with some of the games best players over the past 30 or 40 years. Some even have the opportunity to play with their golfing idols which as you can imagine is a once in a lifetime opportunity"
Omanu's head professional, Brent McKay, says the event and its format came about as the result of an idea floated by a close friend of former club professional Allan Snape, who was an avid supporter of pro-ams, being a former tour player himself.
"It was decided that it would be a fitting tribute to the legacy that he left behind with his passing."
Last year's winning scores were five under par 67s by ex-touring professionals from Australia, Mike Harwood and Mike Fergusson.