The Fajã de Lopo Vaz is a permanent debris field, built from the collapsing cliffs on the southern coast of the civil parish of Lajes, municipality of the same name, island of Flores, in the Portuguese archipelago of the Azores.

A a potable spring, located in the fajã, was likely to have affected sustaining settlement by colonists, providing drinking water and a source for irrigating their crops, in particular taro.

It is a lowland platform, alongside the sea with a shoreline forming small black sand beaches and basalt rocky coastlines of varying dimensions.

These conditions, along with cliffs and maritime coastline has resulted in the area being designated as a Special Protection Zone (ZPE) due to its isolation, geomorphology and unique ecosystem.

This isolation also makes it ideal for ornithology, the study of natural flora and fauna of Macaronesia or for the adventurous wishing to discover deserted beaches, quiet or calm.