Zion has caves that feel different from the busy trails and crowded lookouts. Step inside one and the air cools, sounds echo, and the light fades until you see the park in a whole new way. Some caves are shallow spots carved into rock. Others go deeper and open into hidden rooms. None of them is marked or polished. They are raw and untouched, and that is what makes them worth the effort. Some are tucked away in towering cliffs, while others require a bit of effort to reach, rewarding those who seek them out with stunning natural formations and…