Wikipedia
Swingolf
Swingolf is a family-oriented variation of golf that has is played with a single golf club and softer, bigger balls, giving access to inexperienced and young players.
This sport is usually played casually, similar to mini-golf, but also has a league.
The golf courses are usually less well-kept than normal courses. They are often planted with grass that fits local climate, reducing watering and maintenance and thus reducing cost.
This sport is mainly popular in Europe, especially in France, Germany, Switzerland, and Austria.