Anatomy of a Golf Course
Golf is played by holes. It should be noted that "hole" can mean either the actual hole in the ground into which the ball is played, or the whole area from the teeing ground (an area of specially prepared grass from where a ball is first hit) to the putting green (the area around the actual hole in the ground). Most golf courses consist of 9 or 18 holes. (The "19th hole" is the colloquial term for the bar at a club house.) For the shortest holes a good player requires only one stroke to hit the ball to the green. On longer holes the green is too far away to reach it with the first stroke, so that one or more strokes are played from the fairway (where the grass is cut so low that most balls can be easily played) or from the rough (uncut grass or ground not prepared at all).
Many holes include hazards, namely bunkers (or sand traps), from which the ball is more difficult to play than from grass, and water hazards (lakes, ponds, rivers, etc). Special rules apply to playing balls that come to rest in a hazard which make it highly undesirable to play a ball into one. For example, a player must not touch the ground in a hazard with a club prior to playing a ball, not even for a practice swing. A ball in a water hazard may be played as it lies or may be replaced by dropping another ball outside the water, but a penalty is incurred in the latter case.
The grass of the putting green is cut very short so that a ball can roll over distances of several meters, and "to putt" indeed means to play a stroke on the green where the ball does not leave the ground. The hole must have a diameter of 108 mm and a depth of at least 100 mm. Its position on the green is not static and may be changed from day to day. This hole on the green has a flag on a pole positioned in it so that it may be seen from some distance (but not necessarily from the tee). It is also termed "the pin".
The borders of a course are marked as such, and beyond them is out of bounds, that is, ground from which a ball must not be played. Special rules apply to certain man-made things on the course (obstructions) and to ground in abnormal condition.
Every hole is classified by its par. The par of a hole is defined by the distance from tee to green. Typical values for a par three hole range from 100 to 224 m, par four hole from 225 to 434 m, and a par five hole from 435 m. Par is also the theoretical number of strokes that an expert golfer should require for playing the ball into any given hole. The expert golfer is expected to reach the green in two strokes under par (in regulation) and then use two putts to get the ball into the hole. Many 18-hole courses have approximately four par-three, ten par-four, and four par-five holes. The total par of an 18-hole course is usually around 72.
At most golf courses there are additional facilities that are not part of the course itself. Often there is a practice range, usually with practice greens, bunkers, and a driving area (where long shots can be practiced). There may even be a practice course (which is often easier to play or shorter than other golf courses). A golf school is often associated to a course or club.
Golf course architecture and design
While no two courses are alike, many can be classified into one of the following broad categories:
- Links courses: the most traditional type of golf course, of which some century-old examples have survived in the British isles. Located in coastal areas, on sandy soil, often amid dunes, with few water hazards and few if any trees.
- Parkland courses: typical inland courses, often resembling traditional British parks, with lawn-like fairways and many trees.
- Heathland a more open, less manicured inland course often featuring gorse and heather and typically less wooded than parkland courses. E.g. Woodhall Spa in England or Gleneagles in Scotland.
- Desert courses: a rather recent invention, popular in parts of the USA and in the Middle East. Desert courses require heavy irrigation for maintenance of the turf, leading to concerns about the ecological consequences of excessive water consumption. A desert course also violates the widely accepted principle of golf course architecture that an aesthetically pleasing course should require minimal alteration of the existing landscape. Nevertheless, many players enjoy the unique experience of playing golf in the desert.