السلام عليكم ورحمة الله وبركاته We know that leaving muslim lands for nonmuslim lands is not permissible. But what about one living in a nonmuslim land going to neighboring lands for mountains and

Usually, moving to another country is for less fitna, something that brings you closer to Allah Subhanahu wa ta'ala. It is allowed to move from one disbeliever country to another disbeliever country if you are not able to do hijrah, unless hijrah is not islamically favored for you.