The parents (C) of missing Dutch tourist Kris Kremers attend a public vigil organized for finding their daughter, in Boquete May 28, 2014. More than one hundred local residents and Dutch volunteers gathered for the vigil. Lisanne Froon, 22, and Kremers, 21, reportedly went missing on April 1 in Boquete, Chiriqui province, after setting out on a hike. The tourists were in Panama studying Spanish and were reported missing by their host families, according to local media. REUTERS/Carlos Jasso (PANAMA - Tags: SOCIETY DISASTER)