Original sentence: The Olheiros de Água Doce is a the beach in the Faro District of the Algarve Region on the southernmost coast of Portugal, in Olhos de Água.The Olheiros de Água Doce is near Olhos de Água Beach, east of the Barranco das Belharucas Beach.The inhabitants of the nearby coastal villages moved further north, including the population near Olhos de Água Beach, who went on to found the current Boliqueime.The unusual springs were documented by Arab writers.There are many freshwater springs on the beach, visible during low tide when they bubble through the sand on the beach
Edited sentence: (It is assumed that the particular large spring used by these fishermen is currently totally submerged, even during low tide).The "Olheiros de Água Doce" are located from the Olhos de Água Beach (heading east) to the Barranco das Belharucas Beach.The Olheiros de Água Doce are hundreds of freshwater springs that flow from the beach in the Faro District of the Algarve Region on the southernmost coast of Portugal, and one of the most famous landmarks of Olhos de Água.The inhabitants of the nearby coastal villages moved further north, including (it is assumed) the population near Olhos de Água Beach, who went on to found the current Boliqueime.They are a unique, natural phenomenon described since ancient times by Arab writers.They are only visible during low tide, when they bubble through the sand on the beach