The preparation of this work was based on:
- Review of previously published work;
- Analysis of old and recent maps (eg. physiographic, topographic, and bathymetric maps, plans, etc.);
- Analysis of old and recent photos of the headland and beaches, giant waves, and surfing practices;
- Analysis of articles published in newspapers and magazines;
- Acquisition of new data regarding the evolution of the Nazaré coastline from 1958 to 2014, and the analysis of aerial photos and images;
- Elaboration of maps in ArcGis and production of figures.