You have great photos on Rio Dulce, Guatemala. (An admirable travel site in general - I might add). Next time you are in the Rio check out the marina/hotel TORTUGAL (http://www.tortugal.com). It's a small paradise, upriver from the town of Fronteras. We found the staff very friendly, cute bungalows, and the best marina facilities in the Rio. Check out the restaurant, too. The burrito is delicious.