A bunker is a sand-filled depression on a golf course. It is difficult to hit the ball out of the bunker, therefore, golfers must try to avoid them. If the golf ball lands in the bunker, the player may use a club called a "sand wedge" to try to extract it on their next swing.

There are three types of bunkers used on a golf course. They aim to hinder the golfer's journey up the green, thus making the gameplay more interesting. One type is called a fairway bunker, which is usually positioned near par four and five holes. They can be placed either at the side or in the middle of the fairway. The latter limits a player's chances of hitting the ball directly from one hole to another.

Greenside bunkers are designed to collect wayward shots on par 3 holes. They are positioned near and around the green. Waste bunkers, on the other hand, are natural sandy areas and are not usually considered hazards.

According to the rules of golf, a player must not let their club touch the ground when attempting to hit the ball out of a bunker. This rule generally applies only to the fairway and greenside bunkers.

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