Kouang Si Waterfalls, Laos

When I told the official, he actually told me to walk through customs (leaving my passport as collateral) and into the airport forecourt where I could change my various notes to US dollars at the money exchange and then come back and go through immigration - how bizarre. At the money exchange (no cash machines in Luang Prabang airport), I managed to muster $30 from my Vietnamese Dong and Thai