Outdoor model railroading involves creating miniature train layouts in outdoor spaces, allowing enthusiasts to build and operate trains in a natural setting. These layouts can vary in size and complexity, often featuring realistic landscapes, buildings, and scenery that mimic real-world environments. Many outdoor model railroads use G scale trains, which are larger and more durable, making them suitable for outdoor conditions. Enthusiasts often incorporate elements like gardens, water features, and scenic backdrops to enhance the visual appeal and realism of their layouts, providing a unique hobby experience that combines creativity and engineering.