In golf, a situation is said to be hole-in-one when the player bangs the ball straightaway from teeing ground into a cup with a single shot. This is possible only on par 3 holes. Par 4 as well as par 5 holes are very difficult for the golfers to hit in one shot. Holes in one are very rare. The names of the unskilled players who attain hole-in one are generally published in local newspapers. Most of the golfers who make hole-in one celebrate their triumph at the clubs by getting drinks for his club patrons. Once in a while particular events host hole-in-one competition, where rewards as valuable as cash prize reaching $4 or a new-fangled car are offered. Typically such cash prizes are backed up by insurance companies which provide prize indemnification service. National Hole-in-one Association is the largest worldwide insurance provider of hole-in-one. It has head offices at London, Melbourne and Dallas.