Crossing the border

Crossing into Panama was fairly easy except you should know that you have to have proof of departure from Panama in order to enter.  We first encountered this in Costa Rica but instead of requiring proof, we simply got a lecture.  No such luck in Panama.  But, the good news is you can (conveniently) buy a bus ticket scheduled to leave Panama back to Costa Rica 1 block from the border crossing.  Consider it your departure tax . . .