If you are daunted by the prospect of laying out your own course, we are here to help
Should be typically between 25 and 125 yards
Holes can take in whatever terrain you have at your disposal. Fairways with obstacles either side, rising and falling terrain and trees are all great ideas.
We have found it works well to mark out a course and give it a try. There's no better proof than in the eating. You will be able to change the course easily, using the turf of a new hole to fill one you don't like.
The photo here shows a classic park golf hole in Japan with out of bounds on the right and obstacles on the left. Getting the ball onto the green in your first shot should be a possibility in straight holes like this.
It's totally possible to make your course as visible or as invisible as you wish. For private gardens, you can choose hole covers that blend neatly in with your lawn so that when not playing, your park golf course is almost undetectable.