STORY: Fiona made landfall there on Sunday afternoon, dumping up to 30 inches (76.2 cm) of rain in some areas.
Nearly 90% of Puerto Rico remained without power on Monday, according to Poweroutage.us. Officials said it would take days to reconnect the whole island of 3.3 million people.
Meanwhile, many Guanica residents had trekked further north to the city of Yauco seeking gasoline for generators and other supplies.
A plantain farm on the island's southwestern coast took a major hit from the storm. On Monday, the farm's plantain trees were largely flattened with bunches of fruit strewn across the ground.