The Castle of San Felipe is on Lake Izabal in Guatemala, at the heighest point of the village Morales. In general, to take a tour of the Rio Dulce to Livingston from Morales, the boatmen would take the boat back before proceeding forwards, so that the toursits can see the castle of San Felipe from the sea. It once served as a fortress to defend Guatemala from maritime invasions by the Rio Dulce. When you're in the Caribbean coast of Guatemala, and the sweet river water is pulled, if you go up, you will come to Lake Izabal, which is now a favorite place for long distance sailing. Why not come here to stay for a week? It's sheltered from Wind currents and the coastal breeze.