The phrase "trail network" refers to a connected system of paths or trails that are built for hiking, biking, or other recreational activities. It is like a network of roads but specifically designed for outdoor activities. Full definition
You can also stay at the lodge longer to enjoy the more extensive trail network to really explore this fascinating area. (tourthetropics.com)
The nature trail network in existence since 1989 has been expanded with adjacent trees labelled with both local and scientific names. (ambergrisCaye.com)