Modern disc golf started in the early 1960s in the US, after being first invented in the early 1900s in Canada. Most disc golf courses have 9 or 18 holes, with average distances between tee (starting position of a hole) and basket of 60–120m (200–400 ft) and no shorter than 30 m (100 ft). Course designers use trees, bushes, elevation changes, water hazards, and distance variation, along with out-of-bounds zones and mandatory flight paths to make each hole challenging and unique. Every course is different! More details can be found here. There are around 10'000 courses in the world, but despite the growing number of fans and disc golf demand globally, only three countries account for 85% of all disc golf courses worldwide: the United States (75%), Finland (7%) and Canada (3%). For example. France. Germany, Switzerland and Austria together account for only around 250 courses, with most of them located in Germany. In Switzerland in a radio of 100 km from Basel, there are only around 10 courses available, with around half on them on the German side and most of them located in public parks which need to be "shared" with pedestrians, joggers and other facility users. Of course pofessional course designers consider safety a critical factor in course design, and are careful to minimize the danger of being hit by a flying disc, but still finding a course fully dedicated to disc golf is very rare, especially in Switzerland. If you want to know more, you can get a great overview of all courses on U-DISC.