Monterrico, a small beach town on Guatemala´s southern coast, about a five-hour drive from Quetzaltenango, is defined by its beautiful black sand beaches, which will roast one´s feet if they are sans flip-flops or shoes. (All of the photos can be seen here http://picasaweb.google.com/zach.zaslow/Monterrico).

By day, we played in the ocean--twirled, upended, and occasionally smashed into the soft sand by the powerful waves breaking close in to the beach. I and two other students swam briefly out past the breakers, careful not to get too far from shore because of the strong undertow.
At night, we lay in hammocks, swam in the pool, and walked south along the beach for miles, watching for sea turtles coming ashore to lay their eggs. The turtles were nowhere to be seen, but imaging their journey through the dark surf made real the vastness of the ocean, which in all my previous (and superficial) experience had seemed only another body of water to play in--something that was, at most, 20 feet deep, like a salty and tempestuous swimming pool, but nothing more.

The next morning, I and one other student arose at 5:30am for a rendezvous with a body of water of an opposite temperament. (The others insisted on sleeping in.) The same guide from the night before took us on a tranquil tour of dense, thickly woven mangroves, a labryinth of branches, grasses, and quiet, placid waters. If I understood him correctly (and, admittedly, it´s quite likely I didn´t), the inland river area we toured is composed of freshwater in the winter and saltwater in the summer, when one body of water or the other rises high enough to meet the other. The salt from the ocean floods the ecosystem, creating a cyclical killing off of much of the flora but generating a hospitable environment for many more types of fish.

Emerging from the elaborate maze of early morning mangroves into an area of open water, we were met by a view of four of Guatemala´s volcanos looming above the tall grass. As our guide navigated back toward the dock via a different route, we encountered bird´s nests and water lillies, and I snapped some good photos of the sunrise.