As stated on the ARRL website, "ARRL Field Day is the most popular on-the-air operating event in amateur radio. On the fourth full weekend in June, tens of thousands of amateur radio operators gather for a public demonstration of our service. Field Day is part educational event, part operating event, part public relations event - and ALL about FUN!"

My local Amateur Radio Club usually joins forces with another local club to put together an incredible annual Field Day event. It truly is a spectacular sight that must be seen to be truly appreciated.