The entrance to Sunagakure. There is no man made gate protecting this city, but Instead it is surrounded by a natural stone wall, sprinkled with hundreds of caves. There is truly only 3 different paths into the village which is only known to the citizens and shinobi of Suna. Those who try to find their way through will be lost for days, not knowing when they get out. They may also during that time be buried in if a sandstorm appears.
