The trike only trail is a path through plants and trees in a garden my father began creating more than 50 years ago. It is trike only in that it has a low ceiling, making it unsuitable for riding upright or even walking.
The trail has evolved over the years. It was created using planting, pruning, arranging logs and branches. When the ceiling is too low, a trench drops the rear wheel (and the person's head) another few inches.