It depends on what kind of tour you want to guide. Most likely an Arts degree, for example in history or in fine arts, or possibly in geography; the courses will depend on what you want to do personally.
Geology or geophysics
If you are interested in working as a pediatric oncologist, or any kind of physician, you should major in biology in college. If your college has a pre-med major, you should choose that major.
Pre Med, Biology or Chemistry.
english, literature, or business
always argue with lecturer XD
chemistry,science,pchycology
You should major in nutrition classes. If not, the next best thing would be a health & human development class.
you should major in health.
Journalism
To become a college professor you have to be a master in whatever you will teach. You should have a Ph.D or Doctorate in the subject you are teaching. So if you are teaching Civil Engineering you should have a Ph.D and extensive experience to make yourself marketable to whatever school you want to teach for.
There are many steps in the process of becoming a consultant. To start, you should obtain a college degree with a major preparing you to become a consultant.
To become a ladies wear designers, you should major in fashion design or art. You do not have to pursue any of these if you really have the talent and the drive to succeed.