In March of 2004, I had the opportunity to take an adventurous trip down a 120km stretch of the Usumacinta River, a very dramatic river - the border between Mexico and Guatemala. A more complete "travelogue" can be found on my personal website at http://www.billlieberman.com/usu-rivertrip

Some of the highlights included visiting incredible archaeological sites both in Palenque,Chiapas on directly on the river. It took eleven of us about nine days of floating and lazing down the river to travel the seventy some-odd miles. ... (more)