Sweet Water.

We have been moving sluggishly down the Tonle Sap River for two blindingly sunny, scorchingly hot mornings and afternoons. The landscape, historically part of an extensive flooded forest ecosystem, had given way to dry, scrubby, shashed, and burned grassland. This stretched off to the horizon broken by the silhouettes of tall palm trees, water buffalos, and the occasionally spindly farm house.

The flood-plain, though no longer the maze of tangled branches that provided breeding and feeding habitat to fish in one of the world's most productive fresh water fisheries, still supports innumerable trey riel. These small fish are so important to Cambodians that their name is shared with the national currency.

Our dated maps tell us that around the next bend there should be a long canal, a short cut through the flat lowlands. Slowly a huge green mass starts to show on the right bank. In our shadeless, sun-soaked world the promise of large leafy branches is only too welcome. A half an hour later huge branches, large enough to tower as trees themselves, hang over my head and yellow kayak. Next to the twisted roots the canal--long silted in--enters the muddy river. Though the canal holds too little water to offer much of a short cut the trickle of clear liquid in it looks perfect for drinking. After gathering empty bottles and my filter I began to decant the clean water.

A shirtless child watches us from the top of the bank. A small puppy stands by his feet. As the first bottle fills a man comes over the bank--we exchange greetings. I pantomime my intention to drink the clear water at my feet, asking with thumbs up if it is clean. Instantly he shakes his head, pointing to the farm fields above and successfully communicating that in this clear stream, below this scared tree, flows harmful pesticides. After this lucky encounter the muddy water of the big river taste that much sweeter.