from abandoned to cozy, build underground abandoned dugout survival shelter, no talking

, abandoned, bushcraft, survival I didnt find this shelter on one of my travels; while walking a route through a mountainous area, I saw an abandoned dugout which, at a glance, was about 40 years old, its condition was deplorable, but I wanted to turn this place into a cozy camp for tourists like me, what if in winter they will get here along the route and will be able to warm up and spend the night in a comfortable shelter