Town and Mareta for an everyday base
Accommodation within the main town and towards Mareta is worth comparing if you want meals and a town-side beach within your daily routine. The useful detail is the actual route between the address and those places. Look at road crossings, the beach entrance and the return in the evening. Being central to Sagres is not the same as being beside every beach, and a convenient local base can reduce unnecessary journeys.
Towards Tonel for an Atlantic-facing stay
A property towards Tonel can suit visitors whose plans revolve around that beach or the western side of the headland. Think about what you will do when conditions do not suit a beach session as well as what you will do when they do. Ask about storage or drying space if carrying activity equipment. Compare the route to meals and shops; a location chosen for one activity still has to work for the rest of the day.
Baleeira and Martinhal for a different setting
The eastern side around Baleeira and Martinhal offers a different relationship with the coast from a town-centre property. Match the address to the beach or departure point you actually expect to use. Families may value more space or particular facilities, but compare those with the need for transport. A map label covering a broad area should not substitute for checking the walk from the room or apartment to the sand.
Plan for wind and the wider coast
For a longer stay, indoor comfort and a sheltered place to sit can matter alongside a sea view. Establish parking, the arrival process and any seasonal facilities before booking. If the cape and several remote beaches are important, a driving base may suit you; if most days will be local, compare occasional transport instead. Ask specific questions about access and facilities rather than relying on a general description of Sagres as a beach resort.