<p>Yes - you can keep in touch with letters. My cadet wrote lots of letters - basically a diary that he sent home in letter form. It is a wonderful reminder of his experience that we really appreciated at the time, and I know he will treasure in later life (yes we kept them all :)). I suspect that getting mail is a highlight in a new cadets day during Beast. It is a good idea to give addressed and stamped envelopes to all of your friends before you leave on R-Day.</p>