I thank everyone for their suggestions and comments. Perhaps I was too hasty and excited about getting my message out to fully think it through. You all brought up very good points about how impractical it is for the students to join, being on a school sanctioned field trip. I would never have been able to do something like this when I was on a high school field trip. All I would like to do now is simply have people visit
www.invisiblechildren.com just to find out what is going on so they are aware. Awareness is the number one priority right now.
Thanks again everyone!