Access Issues
If you are driving, the best way yo access the beach is to park in front of the Praia Castro de São Paio (77M9+7F Labruge, Portugal) and walk to the beach from there.
Apple maps or even Google may direct you closer, but the drive is not a safe one in my opinion and I´m not sure you can actually do it.
Approach
Easy to walk to from anywhere using the wooden pathways.
Ethic
This is a protected area, with a lot of history. Don't litter, try to not wander off the path, do not over chalk the rock, and avoid destroying the vegetation.